Answer:
6x + 3
Step-by-step explanation:
'x' and '5x' are like terms. Combining them will simplify the expression.

Hope this helps.
Ok so you have to work backwards so lets say
x=50
work backwards does the answer you got make sense for it to be that answer
Answer:
84 feet
Step-by-step explanation:
-16(1.5)^2+120=84
-6, -3, 0, 1, 5
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