Question

Resolva as equações
(A) x+5×=25

(B)2x=10+x

(C) x=-5x+32

(D)2x+x+x=x+x+18

(E) 4. (2+x)=2×+15

Answer 1

Resposta:

Boa noite!

A)4,16

B)10

C)5,33

D)9

E)-7

Explicação passo-a-passo:

A) x+5x=25

6x=25

x=25/6

x=4,16

B)2x=10+x

2x-x=10

x=10

C)x=-5x+32

x+5x=32

6x=32

x=32/6

x=5,33

D)2x+x+x=x+x+18

4x-2x=18

2x=18

x=18/2

x=9

E)4.(2+x)=2x+15

8+x=2x+15

8-15=2x-x

-7=x

x=-7