Answer:
y=12
Step-by-step explanation:
Lets write out the equation so it easy to work with.
7y=84
Divide both sides by 7
7y/7=84/7
Divide
y=12
Answer:
None.
Step-by-step explanation:
let's check it
- 2a + 2a + 7 = 8
7≠ 8
So there's no solution for the given equation.
Answer:
(f+g)(x)=-3x^2+4x+3
Step-by-step explanation:
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15 books in 6th grade
18 books in 7th grade.
% Change = (18 - 15) /15 * 100%
= 3/15 * 100%
= 1/5 * 100% = 20%
Percent change = 20%.
