-3(2.1x-4)-4.2=1.2(-5x+0.5)
– 6.3x + 12 – 4.2 = – 6x + 0.6
– 6,3x + 6x = 0,6 + 4,2 – 12
-0.3x = -7.2
x = 24
-3(2.1x-4)-4.2=1.2(-5x+0.5)
– 6.3x + 12 – 4.2 = – 6x + 0.6
– 6,3x + 6x = 0,6 + 4,2 – 12
-0.3x = -7.2
x = 24