Question

Решите пж пж пж даю 50 баллов

Answer 1

Ответ:

1. x = -40

2. x = 2

3. x = 8

4. x = 17

5. x = -1/2 или -0,5

Объяснение:

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1. 0,5x = -20

x = -20/0,5

x = -40

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2. 12x - 16 = 8

12x = 8 + 16

12x = 24

x = 24/12

x = 2

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3. 3x - 10 = x + 6

3x - x = 6 + 10

2x = 16

x = 16/2

x = 8

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4. 5x - (7x - 43) = 9

5x - 7x + 43 = 9

-2x = 9 - 43

-2x = -34

x = -34/-2

x = 17

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5. 3(4 - 2x) - 2(x + 3) = 10

12 - 6x - 2x - 6 = 10

-8x = 10 - 12 + 6

-8x = 4

x = 4/-8

x = -1/2 или -0,5

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Answer 2

0,5х=-20

х=-20:0,5

х=-40

12х-16=8

12х=8+16

12х=24

х=2

3х-10=х+6

3х-10-х-6=0

2х=16

х=8

5х-(7х-43)=9

5х-7х+43=9

-2х=9-43

-2х=-34

х=17

3(4-2х)-2(х+3)=10

12-6х-2х-6=10

8х=10+6

х=2