Respuesta :

kjin

Answer:

A. x=10

B. x=-19

C. x=53

D. x=-1/28

Step-by-step explanation:

A.

2x+3=23

2x=20

x=10

B.

-3(x+9)=30

x+9=-10

x=-19

C.

0.75x-12.75=27

0.75x=39.75

x=53

D.

1/2x+6=-8

1/2x= -14

1=-28x

x=-1/28

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