Question

resolva as equações
a) 3x+2=20
b) 4x+3=13+12x
c)20x=10

Answer 1

A) 3x = 18
x = 18/3
x = 6

b)4x - 12x = 13 - 3
-8x = 10
x = -10/8
x = -5/4
x = -1,25

c) x = 0,5