Question

resolva as equacoes de 1 grau 3y + 4 = + 14 - 9y
3 - 3 ( y - 2 ) = 2y - ( y - 4 )
2 ( x + 12 ) = 4x - 10

Answer 1

Resposta:

3y+4=+14-9y

> 3y+9y=14-4

>12y= 10

y= 10/12

y=5/6

3-3(y-2)=2y-(y-4)

3-3y+6= 2y-y+4

3+6-4=y+3y

3+2=4y

4y=5

y=5/4

2(x+12)=4x-10

2x+24=4x-10

24+10=4x-2x

34=2x

2x=34

x=34/2

x=17

Explicação passo a passo: