Question

Ecuaciones

9(2x-6) - (x+3)= 4x - 18

15x-5(2x-1)=3(3x-5)

3(4x-3)-(x+7)=5(10-x)+2

8(1-x)-2(x+1)=3(2-2x)

Answer 1

solución:
9(2x-6) - (x+3)= 4x - 18

18x-54-x-3=4x-18

18x-x-4x=-18+54+3

13x= 39
x= 39/13
x= 3

2) 15x-5(2x-1)=3(3x-5)

15x -10x+5= 9x-15

15x-10x-9x=-5-15

-4x=-20
x=-20/-4
x=5

3) 3(4x-3)-(x+7)=5(10-x)+2

12x -9-x-7=50-5x+2

12x-x+5x=7+50+2

16x=59
x=59/16

4) 8(1-x)-2(x+1)=3(2-2x)

8-8x-2x-2=6-6x

-8x-2x+6x=6-8+2

-4x=0
x=0/-4
x=0