Answer:
m = 8 + 3n
Step-by-step explanation: there is an app called photo math it solves these problems instantly. I used it for this problem.
Multiply, because the total price is ten percent more than the original: $75 x 1.1 = <span>$82.5</span>
Given:7-x-5=x+2
1)combine like terms
2-x=x+2
2)Isolate the variable
-x=x+2-2
3)move x to the left
-x-x=0
4)combine like terms
-2x=0
5)Divide
X=0