Question

-3х+3=-7х
9+10(3х-10)=2
2-2(3х-4)=-2
6(-5-3х)=-9х+6
4-4х=10-9(х+2)
Решите пож.

Answer 1

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Answer 2

-3х+3=-7х
-3х+7х= -3
4х = -3
х = -3/4

9+10(3х-10)=2
9+30х-100=2
30х = 2+100-9
30х= 93
х = 3 3/30= 3,1
х=3,1

2-2(3х-4)=-2
2-6х+8 = -2
-6х = -2-2-8
-6х= -12
х= -12/-6 = 2
х=2

6(-5-3х)=-9х+6
-30-18х+9х=6
-9х = 6+30
-9х = 36
х = -4

4-4х=10-9(х+2)
4-4х=10-9х-18
-4х+9х = -8-4
5х = -12
х = -12/5=-2 2/5
х= -2,4