Question

repondam mi pf 

a)2x+4=12
b)8x-1=  15

Answer 1

$a) \\ \\ 2x + 4 = 12 \\ 2x = 12 - 4 \\ 2x = 8 \\ x= \frac{8}{2} \\ x = 4 \\ \\ \\ b) \\ \\ 8x -1 = 15 \\ 8x = 15 + 1 \\ 8x = 16 \\ x = \frac{16}{8} \\ x = 2$