Question

mim ajuda por favor na conta a)3×-11+4=2×+12-6

b)5×-3=13

c)2(×-4)+3=5.(3)

d)3(×+2)=×+3(2)

E)2×-4=10×+20

f)×+8=3×-4

Answer 1

a)3x-11+4=2x+12-6

3x-2x=12+11-6-4

x=13

b) 5x-3=13

5x=13-3

5x=10

x=10/5

x=2

c) 2(x-4)+3=5.(3)

2x.8+3=15

2x=15-11

2x=4

x=4/2

x=2

e)2x-4=10x+20

-4-20=10x-2x

8x=24

x=24/8

x=3

f)x+8=3x-4

8-4=3x-x

2x=4

x=4/2

x=2