find two solutions of the linear equation 7x-3y=5
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2] 2y = -3x + 11
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1]
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much :
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much : x = 1
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much : x = 1 y = -3x/2+11/2
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much : x = 1 y = -3x/2+11/2// Use the x value to solve for y
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much : x = 1 y = -3x/2+11/2// Use the x value to solve for y y = -(3/2)(1)+11/2 = 4
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much : x = 1 y = -3x/2+11/2// Use the x value to solve for y y = -(3/2)(1)+11/2 = 4 Solution :
2] 2y = -3x + 11 [2] y = -3x/2 + 11/2// Plug this in for variable y in equation [1] [1] 7x - 3•(-3x/2+11/2) = -5 [1] 23x/2 = 23/2 [1] 23x = 23// Solve equation [1] for the variable x [1] 23x = 23 [1] x = 1 // By now we know this much : x = 1 y = -3x/2+11/2// Use the x value to solve for y y = -(3/2)(1)+11/2 = 4 Solution : {x,y} = {1,4}
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x=1,y=2
x=2,y=1
x=3,y=1
x=1,y=3
x=1,y=2
Given equations are:
x+2y=5
7x+3y=13
Multiplying equation (1) by 7
7x+14y=35 ...(3)
Subtracting equation (2) from equation (3),
we have,
11y=22
y=2
Now putting y value in equation (1)
⇒x+2(2)=5
⇒x=5−4
⇒x=1
x=1,y=2
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