Ответы и решение 9 (х+7) = - х 5 (х-3) = 4 х 4 (х+6) = х - х=4 (6+х)

9x+63 = - x

10x = - 63

x = - 6,3

5x-15 = 4x

x=15

4x+24 = x

3x = - 24

x = - 8

-x=24+4x

3x = 24

x=8

9 (х+7) = - х

9 х+63=-х

9 х+х=-63

10 х=-63

х=-63:10

х=-6.3

5 (х-3) = 4 х

5 х-15=4 х

5 х-4 х=15

х=15

4 (х+6) = х

4 х+24=х

4 х-х=-24

3 х=-24

х=-24:3

х=-8

-х=4 (6+х)

-х=24+4 х

-х-4 х=24

-5 х=24

х=24: (-5)

х=-4.8