Answer:
Step-by-step explanation:
we have
we know that
x + (x + 3) + = 75
so you will add up all of the x 's but NOT the x^2
2x + 3 + = 75
Rearrange to put the x^2 in front of 2x
+ 2x + 3 = 75
subtract the 75 from both sides
+ 2x - 72 = 0
The answer is D
2x / 5 = 5
5 x 5 = 25
2x = 25
25/2
x= 12.5