1/ 5х=15

х=15/5

x=3

2/ 3x+8=10-4x

3x+4x=10-8

7x=2

x=2/7

3/ 0.125x = 131/8

8*0,125 x = 131

x=131

4/ 10x+ 2(2x+3) - 14x = 21

10x + 4x + 6 - 14x = 21

6 = 21 решений нет

5. 12x+2(2x+5)-16x = 10

12x+4x + 10 - 16x = 10

10=10 решения - вся числовая ось

6. 5(x-3) = 2x - 8

5x - 15 = 2x - 8

5x - 2x = -8 + 15

3x = 7

x = 7/3

Verified answer

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