Solve the following system of equations for y:
y = 2x + 6
3x − 4y = −1
2 answers
for the first one y equals −6
Replace y=2x+6 in equation:
3x − 4y = −1
3x-4(2x+6)=-1
3x-8x-24=-1
-5x-24=-1
Add 24 tiboth sides
-5x=23
Divide both sides by -5
X
x=-23/5
Replace this value in equation:
y=2x-6
y=-46/5-6
y=-46/5+30/5
y=-16/5
3x − 4y = −1
3x-4(2x+6)=-1
3x-8x-24=-1
-5x-24=-1
Add 24 tiboth sides
-5x=23
Divide both sides by -5
X
x=-23/5
Replace this value in equation:
y=2x-6
y=-46/5-6
y=-46/5+30/5
y=-16/5