Isolate x on one side of the equation.
15+4x=3x-7
15+4x-4x=3x-7-4x
15=-7-x
15+7=-7+7-x
22=-x
x=-22
Answer:
1.) 
2.)
3.)
4.)
5.)
6.) 
Step-by-step explanation:
I did 6 problems for you. You can now do the other 4 problems and see how I did it. You need to have the same denominator and the add the fractions together.
Graph atached as an image.
C = 9 m the perimeter is all the sides added together you have 9 +8 that is 17 add another 9 and that equals 26 which is the perimeter.<span />
Answer:
a) 1 minute and 12 seconds
b) .833 repeating
c) 25 minutes and 12 seconds
Step-by-step explanation:
A and B are simple so for C:
21 laps = 5 * 4 = 20, 6 * 4 = 24, 20 + 1 = 21, 24 + 1 minute and 12 seconds = 25 minutes and 12 seconds
12 * 5 = 60
If I messed up tell me I keep confusing myself.
