Question

Решите линейные уравнения... 4х+4=-6х-5; 3х+3=-2-7х; 7-6х=-4х-6; 9-4х=-9х-4

Answer 1

1. 4х+4=-6х-5
4х+6х=-5-4
10х=-9
х=-9/10= -0,9

2. 3х+3=-2-7х
3х+7х=-2-3
10х=-5
х=-5/10=-0,5

3. 7-6х=-4х-6
-6х+4х=-6-7
-2х=-13
х= 13/2 = 6,5

4. 9-4х=-9х-4
-4х+9х=-4-9
5х=13
х=13/5 = 2,6