Answer:
300+12x = 450
or
B. 12x+300 = 450
Find like terms:
5x and 2x are like terms,
as well as:
42 and 1
do the math per usual but with the like terms:
5x - 2x = 3x
42 -1 = 41
Therefore your answer is:
(3x - 41)
(hope this helps)
