Question

realizar el procedimiento de cada ecuación
7x-28=9x+2x+4
2x+x+1=4x-1
6x-2=4x+20
3 (x+4)= -5x-36
12x+4x-8=2x-22

Answer 1

Resolución:

7x-28=9x+2x+4
-28 - 4 = 11x -7x
-32 = 4x
-32/4 = x
-8 = x

2x+x+1=4x-1
3x +1 = 4x - 1
1 + 1 = 4x - 3x
2 = x

6x-2=4x+20
6x - 4x = 20 + 2
2x = 22
x = 22/2
x = 11

3 (x+4)= -5x-36
3x + 12 = -5x - 36
3x + 5x = -36 - 12
8x = -48
x = -48/8
x = -6

12x+4x-8=2x-22
16x - 8 = 2x - 22
16x - 2x = -22 + 8
14x = -14
x = -14/14
x = -1