Hey there!
36 - x = -36
-x + 36 = 36
SUBTRACT 36 to BOTH SIDES
-x + 36 - 36 = -36 - 36
CANCEL out: 36 - 36 because that gives you 0
KEEP: -36 - 36 because it helps solve for the x-value
NEW EQUATION: -x = -36 - 36
SIMPLIFY IT!
-x = -72
-1x = -72
DIVIDE -1 to BOTH SIDES
-1x/-1 = -72/-1
CANCEL out: -1/-1 because it gives you 1
KEEP: -72/-1 because it gives you the value of x
NEW EQUATION: x = -72/-1
SIMPLIFY IT!
x = 72
Therefore, your answer is: x = 72
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)