9 (x-3) = (5x+5)

- (4x-2) = - 6

2x-1=-2 (x-3)

Question

Математика

Костюха

14 марта, 05:06

9 (x-3) = (5x+5)

- (4x-2) = - 6

2x-1=-2 (x-3)

+5

Ответы (1)

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Юнонка · Answer 1

1) 9x-27=5x+5

9x-5x=5+27

4x=32

x=32/4

x=8

2) - (4x-2) = - 6

-4x+2=-6

-4x=-6-2

-4x=-8

x=-8 / (-2)

x=4

3) 2x-1=-2 (x-3)

2x-1=-2x+6

2x+2x=6+1

4x=7

x=1.75

9 (x-3) = (5x+5)- (4x-2) = - 62x-1=-2 (x-3)

9 (x-3) = (5x+5)

- (4x-2) = - 6

2x-1=-2 (x-3)