Question

Find the value of 9y-5 given that -2y+4=8.
Simplify your answer as much as possible.

Answer 1

Given , -2y + 4 = 8

= -2y + 4 = 8

= -2y = 8 - 4

= -2y = 4

= y = 4 ÷ (-2)

= y = -2

Then , 9y - 5 =

= 9y - 5

= 9 × (-2) - 5

= -18 - 5

= -23

∴ 9y - 5 = -23 ( y = -2 ) .