Question

Preciso saber a resposta dessa questão ...

Answer 1

Resposta:

A) 5

x+2=7

x=7-2

x=5

B)3

x-3=0

x=3

C)4

2x=8

x=8/2

x=4

D)15

x/3=5

x=15

E)4

-2x=-8

2x=8

x=8/2

x=4

F)16/9

3x-2/2 -3x+1/2 = 4x-6/5

9x-6-6x+2/6 = 4x-6/5

3x-4/6 = 4x-6/5

15x-20/6 = 4x-6

15x-20 =24x - 36

-9x=-16

x= 16/9

G)-8

18+y=10

y=-8