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What is the value of y in the solution to the system of equations?

1/3x+1/4y = 1
2x – Зу = -30

A -8
B -3
C 3
D 8​

User Tuffkid
by
8.5k points

1 Answer

3 votes

To solve for y you have to simplify both sides of the equation, then isolating the variable which equals to...

y = -4x/3 + 4

Next, you have to move all terms that don't contain y to the right side and solve.

y = 10 + 2x/3

____

Now we solve the first variable in one of the equations, then substitute the result into the other equation.

Point Form: (-3,8)

Equation Form: x = -3, y = 8

____

Leaving it to be the only choice which is 'D.) 8', I hope this helps, as always. I wish you the best of luck and I hope you have a nice day..

User Mojtaba Ghiasi
by
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