Answer:
x = -8
Step-by-step explanation:
5(x + 3) = -25
5x + 15 = -25
5x = -25 - 15
5x = -40
A pack of pencil' price=$8
Price went up=$12
increasing percentage = change/original x100
= (12 -8)/8 x100
=4/8 x100
=50%
96
its a simple problem
