Question

Resolva as equações: A)6x=2x+16 B)2x-5=x+1 C)2x+3=x+4 D)5x+7=4x +10 E)4x-10=2x+2 F)4x-7=8x-2 G)2x+1=4x-7

Answer 1

A) 6x = 2x + 16   =>   6x - 2x = 16   =>   4x = 16   =>   x = 4
B) 2x - 5 = x + 1   =>   2x - x = 1 + 5   =>   x = 6
C) 2x + 3 = x + 4   =>   2x - x = 4 -3   =>   x = 1
D) 5x + 7 = 4x + 10   =>   5x - 4x = 10 - 7    =>   x = 3
E) 4x - 10 = 2x + 2   =>   4x - 2x = 2 + 10   =>   2x = 12   =>   x = 6
F) 4x - 7 = 8x - 2   =>   4x - 8x = -2 + 7   =>   -4x = 5   =>   x = -5/4
G) 2x + 1 = 4x - 7   =>   2x - 4x = -7 - 1   =>   -2x = -8   =>   x = 4