Question

A)3x+12=2x+23
B)4x-11+x=2x17
C)3x+2x-15=25
D)x+56=2x-44
E)34+x+2x=x+2

Answer 1

Resposta:

a) 3x+12=2x+23

3x-2x=23-12

x=11

b) 4x-11+x=2x17

4x+x-2x=17+11

3x=28

x=28/3

x=9,333

c) 3x+2x-15=25

3x+2x=25+15

5x=40

x=40/5

x=8

d) x+56=2x-44

x-2x= -44-56

-x= -100 (-1)

x=100

e) 34+x+2x=x+2

x+2x-x=2-34

2x= -32

Espero ter ajudado

Bons estudos