Hey there!
(4x) + 81 + 5x + 18 = 180
4x + 81 + 5x + 18 = 180
9x + 99 = 180
ADD 99 to BOTH SIDES
9x + 99 - 99 = 180 - 99
CANCEL out: 99 - 99 because that gives you 0
KEEP: 180 - 99 because that helps solve for the x-value
NEW equation: 9x = 81x
DIVIDE 9 to BOTH SIDES
9x/9 = 81/9
CANCEL out: 9/9 because that gives you 1
KEEP: 81/9 because that gives you the value of x
New equation(s): x = 81/9 or 81/9 = x
Simplify the new equation(s) and you have the x-value.
If you solved correctly you should have came with the x-value being 9
x = 9
Therefore, your answer is: x = 9
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
