No it's a lot easier to use percent equation because it's easier to correct if wrong and you can get a better understanding of percent equation.
7b - 2b + 3 - 1 = 0
(7b - 2b) = 5b
3 - 1 = 2
Thus:
5b + 2 = 0
5b = -2
b = -2/5 = -0.4
Answer:
The Framers are offering a better price and are cheaper by $1.35
Step-by-step explanation:
I've been framed price:
50% off of 115 = 0.5*115 = 57.5
10% off of sale price = 0.9*57.5 = $51.75
the Framers price:
30% off of 120 = 0.7*120 = 84
40% off of sale price = 0.6*84 = $50.40
Difference: 51.75-50.40 = $1.35