Question

resolva as equações
A) x - 5 = 8 | B) 2 x - 10 = 16 | C) 3x - 27 = 27 | D) -39 + 2x = - 25 | E) - 30 + 5x = -30
??????

Answer 1

A . X-5=8
X=8+5
X=13

B. 2X - 10 =16
2X=16+10
2X=26
X=26/2
X=13
 
C. 3X - 27= 27
3X=27+27
3X=54
X=54/3
X=18
D. -39+2x=-25
2x=-25+39
2x=14
x=14/2
x=7
e. -30+5x=-30
5x=-30-30
5x=-60
x=-60/5
x=-12