1)3(x-1/3)+2(x-1/2)=8. 2)2x+3(5-x)=15,5. 3)15-4(7+2x)=1. 4)3(11+x)-(2x-5)=11....

Раскрывает скобки приводим подобные слагаемые и решаем уравнение

$1)3x - 3 \times \frac{1}{3} + 2x - 2 \times \frac{1}{2} = 8 \\ 3x - 1 + 2x - 1 = 8 \\ 5x - 2 = 8$

5х=8+2=10

х=10:5=2

$2)2x + 3 \times 5 - 3x = 15.5 \\ 2x + 15 - 3x = 15.5 \\ - x + 15 = 15.5 \\ - x = 15.5 - 15 = 0.5 \\ x = - 0.5$

$3)15 - 4 \times 7 - 4 \times 2x = 1 \\ 15 - 28 - 8x = 1 \\ - 8x - 13 =1 \\ - 8x = 13 + 1 = 14 \\ x = - 14 \div 8 =$

х=14:(-8)=-1,75

$4)3 \times 11 + 3x - 2x + 5 = 11 \\ 38 - 2x = 11 \\ 2x = 38 - 11 = 27 \\ x = \frac{27}{2} = 13.5$

$5)15 - 10x - 8x + 8 = 3 + 22x \\ 23 - 18x - 3 - 22x = 0 \\ 20 - 40x = 0 \\ 40x = 20 \\ x = 20 \div 40 = 0.5$