Lucifer1488 1) 2х-4+8=16
2х+4=16
2х=12
х=6

2) 3х-9-3=27
3х-12=27
3х=39
х=13

skrilllove 1. 2x - 4 + 8 = 16
2x = 12
X= 8

2. 27 = 3x - 9 - 3
-3x = -33
x = 11