Question

4x=5-2y

y-2x=7
to solve using subsitution, what can be subsituted in place of y in the first equation?

Answer 1

y = 7+2x

Explanation:

4x = 5 - 2y __(1)

y - 2x = 7 __(2)

From eq (2) ,

y = 7 + 2x

Hence, we can substitute (7+2x) in place of y in the first equation.