Question

Resolva as equações:

A) 4X + 9 = X - 6

B) 5X - 3 + 2X = X + 3X

C) 2X + 4 - X = 2 (X + 1)

D) 5 (3x + 2) = 4 - 4X - 10

Answer 1

a)4x-x=-6-9
3x=-15
x=5
b)5x+2x-3x-x=+3
3x=3
x=1
c)2x+4-x=2x+2
2x-x-2x=2-4
-5x=-2
x=2/5
d)15x+10=4-4x-10
15x+4x=4-10-10
19x=-16
x=-16/19