Question

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

1/3x+ 1/4y=1
2x - 3y = -30
-8
-3
0 3
O 8

Answer 1

y=8,x=-3

Explanation:

1/3×+1/4y=1

lcm=12

multiply through by lcm to get equation 1

4x+3y=12

equation 2

2×-3y=-30

equation 2 by 2

using the substitution method

y=8

x=-3