Question

Resolva as equaçoes:
A) x/3 =7
B) 2x/5=4
C) 6x=2x+16
D) 2x+3=x+4
E) 4x-10 =2x+2
F) 2x-5=x+1
G) 5x+7=4x+10
H) 4x-7=8x-2

Answer 1

Explicação passo-a-passo:

A)

x/3 =7

x=3.7

x=21

B)

2x/5=4

2x=5.4

2x=20

x=20/2

x=10

C)

6x=2x+16

6x-2x=16

4x=16

x=16/4

x=4

D)

2x+3=x+4

2x-x=4-3

1x=1

x=1/1

x=1

E)

4x-10 =2x+2

4x-2x=2+10

2x=12

x=12/2

x=6

F)

2x-5=x+1

2x-x=1+5

1x=6

x=6/1

x=6

G)

5x+7=4x+10

5x-4x=10-7

1x=3

x=3/1

x=3

H)

4x-7=8x-2

4x-8x=-2+7

-4x=5

x=-5/4

Espero ter ajudado!