Question

resolva as equações de 1° grau. a)2x-4=20
b)4x-20=2x
c)7x=42/3
d)4x-15=x
e)9x-6x=15/3
f)7x-15=-1
g)11x=22
h)12x+5=2x+8
i)5(3-x)+2(x+1)=x+5
j)5x+20(1-x)=5​

Answer 1

Resposta:

A) X = 12

B) X = 10

C) X = 18

D) X = 5

E) X = 15

F) X = 2

G) X = 2

H) X = 0.3

I) X = 3

j) X = 1