Question

Решите пж для самостоятельной

Answer 1

Ответ:

Объяснение:

1) 7x + 3 = 30 - 2x 2) 3*(x - 2) = 3x + 2

7x + 2x = 30-3 3x-6 = 3x + 2

9x = 27 3x - 3x = 2+6

X = 3 0 x = 8

X = 0.

3) (7х + 1) - (9х + 3) = -2 4) | х - 3 | = 2

7х+1-9х-3=-2 2 + 3 = 5

7х+9х-2 = -2 |х| = 5

16х-2=-2 Х = 5

-2 + 2 =4 16х = 0

Х = 0.

Answer 2

1) 7x+3 = 30-2x

7x+3-30+2x = 0

9x-27 = 0

x = 3

2) 3(x-2) = 3x+2

3x-6-3x-2 = 0

0x-8 = 0

x = 0

3) (7x+1) - (9x+3) = -2

7x-9x+7x-3+1-9x+3 = -2

7x-9x+7x-3+1-9x+3+2 = 0

0x+3 = 0

x = 0

4) x-3 = 2

x = 2+3

x = 5