Question

ecuaciones 1) 3(x+2)-5(4-7x=8 2) 5x+3(x-1)=4(x-2) 3) 4x+9=2x-3+x 4) 4(x+3)=9x+7

Answer 1

1) 3x + 6 - 20 - 35x = 8
6 - 20 - 8 = -3x + 35x
-22/32= x
-11/16= x

2) 5x + 3x + 1 = 4x - 2
5x +3x -4x = -1 -2
4x = -3
x =-3/4

3) 4x - 2x - x = -3 -9
x = -12

4) 4x + 12 = 9x +7
12 -7 = 9x -4x
5 = 5x
5/5 = x
1 = x