Yes since the four sides are always parallel in a square <span />
-7x+12-2x=23+13x
First take away 13x from the right side and put it on the left side adding taking it away from -7x
-7x(-13x)=-20x
-20x+12-2x=23
then add 2x to -20x
and move 12 to the other side, minus it off of 23
-18x=11
then divide -18x on both sides
then x=-11/18
Answer:
answer = 3(a +b)
Step-by-step explanation:

Answer:
10
Step-by-step explanation:
13x + 5x = 180
18x = 180
x = 10
Answer:
n=10
Step-by-step explanation:
I don't know if you are trying to fun 'n' but if you are seeing if they are equal, they are not
-6n+14 = 4n-16.
but if you are trying to find n,
n = 10.