Answer:
x = 36
Step-by-step explanation:
Rearrange the equations before solving simultaneously
4y = -5x - 28
2y = 7x - 24
now subtract
4y - 2y = 2y
5x - 7x = -2x
-28 - - 24 = -4
put these values together.
2y - 2x - 4.
2y = 2x + 4
y = 2x + 4 / 2
y = x + 2
substitute this into one of the 1st equations in the question.
5x = -4(x + 2) + 28
5x = -4x + 8 + 28
5x = -4x + 36
9x = 36
x = 4.
