Question

Решите пожалуйста срочно срочно срочно!!!!!!!!!!!!!!¡¡!!!!!!!!!*;₽+_+__+_+_!'!';';';';';'';'+'+_+​

Answer 1

Відповідь:

1) 13x - 70 = 2x - 26

13x - 2x = 70 - 26

11x = 44

x = 44/11 = 4

2) 10x + 5 = 25 + 5x

10x - 5x = 25 - 5

5x = 20

x = 20/5 = 4

3) 3x - 4 + 2x = 6 + 2x - 4

3x + 2x - 2x = 6 - 4 + 4

3x = 6

x = 6/3 = 2

4) 1.2(x - 5) = 0.2x + 6

1.2x - 6 = 0.2x + 6

1.2x - 0.2x = 6 + 6

x = 12

5) 13 - (2x - 5) = x - 3

13 - 2x + 5 = x - 3

-2x - x = -3 - 13 - 5

-3x = -21

x = -21/-3

x = 7

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