X= original $
Original $ - % of original $= total $
x - 15%x= $22.10
x- 0.15= 22.10
Combine like terms
0.85x= 22.10
Divide both sides by 0.85
x= $26 original price
Hope this helps! :)
If you mean something like 4^3 * 4^14 you have to obey two rules.
1. The base number must be the same for both numbers making up the product.
2. The powers must be added.
In this case 1 and 2 both can be obeyed.
4^3 * 4^14 = 4^(3 + 14) = 4^17
If you want to find the hypotenuse then the formula applied is c^2=a^2+b^2 where c is the hypotenuse. 5^2+7^2=8.6
A ?
Might wanna double check though
7x + 7y = -21
48x - 8y = 136 This is where you find a common sum.
8(7x + 7y = -21) ex: 7 and 8
7(48x - 8y = 136)
56x + 56y = -168 Multiply it out
336x -56y = 952
392x = 784 Divide/Simplify
x = 2
Now substitute to find Y. I hope this helped!