Question

Solve the system of equations.
- 4x + 7y = 20
y = 3x+15

Answer 1

Explanation:

-4x+7y=20

y=3x+15

sol

7y/7=20/7+4x7

y=2.857+4/7x

y=3x+15

Answer 2

y = 4/7x + 20/7
y = 3x + 15