The value of x is: Solve for x by simplifying both sides of the equation, then isolating the variable.
x=−9/4
9+12=m or 9+12=21
this is because when we start with m-9=12 we know that m is supposed to be the sum of 9 and 12.
if we check our work we will see this
9+12=21
m-9=12
21-9=12
Answer:
100% right answer
we need a picture
Step-by-step explanation:
11
