Question

resolva as questões abaixo,considerando U=Z:
a)X+5=8
b)2x+4=16
c)9x2=4x+18
d)4x-18+3x=10​

Answer 1

a)x=3

b)x=12/2=6

c)18-18/4=x=0

d)7x=28-->x=28/7=4

Answer 2

A) X = 8 - 5
X = 3

B) 2x= 16 - 4
2x = 12
X = 12/2
X = 6

C) 9x - 4x = 18 - 2
5x = 16
X = 3,5

D) 4x + 3x = 10 + 18
7x = 28
X = 4