Question

Solve m+9=2

m=_


Which statement shows the correct justification for the step used to solve the equation?


Add 2 to each side.

Add 9 to each side.

Subtract 2 from each side.

Subtract 9 from each side.

Answer 1

Answer:-7

Explanation:

Move the 9 to the other side to collect like terms. It will change to -9 once it crosses the equal to sign. So it'll be 2-9=7

Answer 2

subtract 9 from each side

Explanation:

The reason why,

m+9=2

-9 -9

m=-7