A) -3m+1,9=2m+8,5
– 3m – 2m = 8,5 – 1,9
-5m = 6.6
m = -1.32
b)(5x-1)*1.6=1,8x-4,7
раскроем скобки
8x-1.6 = 1.8x-4.7
6.2x+3.1 = 0
6.2x = -3.1
x = -0.5
A) -3m+1,9=2m+8,5
– 3m – 2m = 8,5 – 1,9
-5m = 6.6
m = -1.32
b)(5x-1)*1.6=1,8x-4,7
раскроем скобки
8x-1.6 = 1.8x-4.7
6.2x+3.1 = 0
6.2x = -3.1
x = -0.5