7(-5+3х)+4х=9
– 35 + 21x + 4x = 9
21x + 4x = 9 + 35
25x = 44
x = 1.76
-6(1-х)+4х=-4
– 6 + 6x + 4x = – 4
6x + 4x = – 4 + 6
10x = 2
x = 0.2
7(-5+3х)+4х=9
– 35 + 21x + 4x = 9
21x + 4x = 9 + 35
25x = 44
x = 1.76
-6(1-х)+4х=-4
– 6 + 6x + 4x = – 4
6x + 4x = – 4 + 6
10x = 2
x = 0.2