-12x-20-40plus 16x
-4x plus -60
These are two problems that fit in that description 10+(-2) AND 15+(-7)
C
By subtracting 18 to both sides you are separating the 3x because you are not ready to isolate the variable (x) in step 1
Answer:
Step-by-step explanation:
A = h(a+b)/2 for h
2A = h(a + b)
h(a+b) = 2A
h = 2A/(a+b)
Number 1 is A, number 2 is B number three is D
