Question

3) -7y + 9 = 3y + 49

Answer 1

Answer: 7y+9=3y+49

We move all terms to the left:

-7y+9-(3y+49)=0

We get rid of parentheses

-7y-3y-49+9=0

We add all the numbers together, and all the variables

-10y-40=0

We move all terms containing y to the left, all other terms to the right

-10y=40

y=40/-10

y=-4

Answer 2

y = -4

Explanation:

first add 7y to both sides

9 = 10y + 49

second subtract 49 from both sides

-40 = 10y

flip it

10y = -40

now divide both sides by 10

y = -4

that is your answer