write four solutions for 5x+y=7. Who give correct answer I will mark them as brainalist
Answers
Answer:
Let x=1
5(1)+y=7
5+y=7
y=2
(1,2)
let y=1
5x+1=7
5x=6
x=6/5
(6/5,1)
let x=2
5(2)+y=7
10+y=7
y= -7
(2,-7)
let x=0
5(0)+y=7
y=7
(0,7)
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Step-by-step explanation:
1st solution : 5x+y=7
Let the value of x=3 and y=?
5×3+y=7
15+y=7
y=7-15
y= -8
The answer of first solution = (3,-8)
2nd solution : 5x+y=7
Let the value of x= 2 and y=?
5×2+y=7
10+y=7
y= 7-10
y= -3
The answer of second solution = (2,-3)
3rd solution : 5x+y=7
Let the value of x=? and y= 1
5×x +1 = 7
5x +1 = 7
5x = 7-1
5x = 6
x = 6/5
The answer of third solution = (6/5 , 1)
4th solution : 5x+y=7
Let the value of x=? and y= -4
5×x + (-4) = 7
5x -4 = 7
5x = 7+4
5x = 11
x = 11/5
The answer of forth solution = (11/5 , -4)
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