Question

Resolva as questões a seguir, valendo 65 pontos

Answer 1

Explicação passo-a-passo:

A) 10-3x=-2x+13

-3x+10=-2x+13

-3x+10-10=-2x+13-10

-3x=-2x+3

-3x=2x= -2x+3+2x

-x=-2x+3+2x

-x=3

-x/-1= 3/-1

x= -3.

B) y+8+2y-5y+3y-11=0

y+8+2y-5y+3y-11=0

y-3+2y-5y+3y=0

1y=3=0

1y-3=0

y-3=0

y-3+3=0+3

y=0+3

y=3

C) -12+3x-5x=-45-x

-12+3x-5x=-45-x

-12-2x=-45-x

-2x-12=-45-x

-2x-12=-x-45

-2x-12+12=-x-45+12

-2x= -x-45+12

-2x=-x-33

-2x+x=-x-33+x

-x=-x-33+x

-x=-33

-X/-1= -33/-1

x=-33/-1

x=33

Answer 2

Explicação passo-a-passo:

A) 10-3x=-2x+13

-3x+10=-2x+13

-3x+10-10=-2x+13-10

-3x=-2x+3

-3x=2x= -2x+3+2x

-x=-2x+3+2x

-x=3

-x/-1= 3/-1

x= -3.