Question

A) 4(x+1)=12


B)9x-3(2x+2)=15


C)12(y-3)+1=6(y+1)-5


D)7(y-1)-2(y-5)=y-5




gente me ajuda



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Answer 1

Resposta:

a)4x+4=12

4x=12-4

4x=8

x=8/4

x=2

b)9x-6x+6=15

3x+6=15

3x=15-6

3x=9

x=9/3

x=3

c)12y-36+1=6y+6-5

12y-6y=36-1+6-5

6y= 36

y=36/6

y=6

d)7y-7-2y-10=y-5

7y-2y-y=7+10-5

4y=12

y=12/4

y=3