Question

3) Resolva as propriedades distributivas abaixo:
a) 2(x - 1) = 12
b) 3(2x + 2) = -6
c) 3(x - 2) = 18
d) 5(2x + 1) = 45​

Answer 1

a) 2(x-1) = 12
2x-2=12
2x=12+2
2x=14
X=14/2
X=7
B) 3(2x + 2) = -6
6x + 6= -6
6x = -6 - 6
6x = -12
X= -12/6
X= -2
C) 3(x -2) = 18
3x-6=18
3x= 18+6
3x= 24
X=24/3
X= 8
D)5(2x + 1) =45
10x + 5=45
10x=45-5
10x=40
X=40/10
X=4