Question

equações
a-2x -7= 5x + 1
b-4x +13 = 43 - x
c-2x -3 = 1 - (3-3x)
d- 3 (x +6) -2 (-x +1)= 5x +8

Answer 1

a) 5x-2x = -7-1
3x = -8
x = -8/3
b) 4x-x = 43-13
3x = 30
x = 30/3
x = 10
c) 2x-3 = -3+3x
3x-2x = -3+3
x = 0
d) 3x+18-2x+2 = 5x+8
x+20 = 5x+8
5x-x = 20-8
4x = 12
x = 12/4
x = 3

Answer 2

a -7 = 3X+1 = -7
b 3X +13 = 43 = 43
c -3 = 1 - (3-1X) = -3
d 3 (+6) -2 (+1) = 3X +8 = +8