Solve the system of equations
-x/2 + y/3 = 0
x + 6y = 16
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multiply first equation by 6
6(-x/2 + y/3) = 6(0)
-3x + 2y =0 ------------------- 1
x + 6y = 16
x = 16 - 6y ----------------------2
substitute 2 in 1
-3(16 -6y ) + 2y = 0
-48 y + 18 y + 2y =0
-48 + 20y =0
48/20=y
12/5 =y
substiute y in 2
x + 6(12/5) = 16
x = 8/5
6(-x/2 + y/3) = 6(0)
-3x + 2y =0 ------------------- 1
x + 6y = 16
x = 16 - 6y ----------------------2
substitute 2 in 1
-3(16 -6y ) + 2y = 0
-48 y + 18 y + 2y =0
-48 + 20y =0
48/20=y
12/5 =y
substiute y in 2
x + 6(12/5) = 16
x = 8/5
Answered by
0
we will solve the system of equation by subsitution method
equation 1
6(-x/2 + y/3) = 6(0) { multiplying equation 1}
so we get
-3x + 2y =0
equation 2
x + 6y = 16
{taking value of x for subsitution equation 1}
now subsituting
-3(16 -6y ) + 2y = 0
-48 y + 18 y + 2 y =0
-48 + 20 y =0
y=48/20
y=12/5
substiuting y in equation 2
x + 6(12/5) = 16
x = 8/5
equation 1
6(-x/2 + y/3) = 6(0) { multiplying equation 1}
so we get
-3x + 2y =0
equation 2
x + 6y = 16
{taking value of x for subsitution equation 1}
now subsituting
-3(16 -6y ) + 2y = 0
-48 y + 18 y + 2 y =0
-48 + 20 y =0
y=48/20
y=12/5
substiuting y in equation 2
x + 6(12/5) = 16
x = 8/5
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