Answer:
n = 6
Step-by-step explanation:
17n + 4n - 4 =122
combine like terms 17n & 4n
21n - 4 = 122
21n - 4 + 4 = 122 + 4
21n = 126
21n / 21 = 126 / 21
n = 6
Condensation reactions are anabolic, because in condensation reactions, two molecules come together to build new molecules.
First need to make an equation for each
x = Miles
y = Total Cost
Comp A: 120 + 0.20x = y
Comp B: 40 + 0.60x = y
cancel out the amounts to make it easier (Subtract 40 from each)
Comp A: 80 + 0.20x = y
Comp B: 0.60x = y
insert a problem for y to solve for x
80 + 0.20x = 0.60x
Your answer is 200 miles
14=6+2x
subtract six from both sides
8=2x
divide both sides by 2
4=x
4 candy bars