Answer:
C. c = -4
Step-by-step explanation:
you must get c by itself. you have to divide both sides by 10. this gets rid of the 10c and keeps both sides equal
-40/10 = c
c = -4
Answer:
a^3-b^3
Step-by-step explanation:
(a−b)(a2+ab+b2)
=(a+−b)(a2+ab+b2)
=(a)(a2)+(a)(ab)+(a)(b2)+(−b)(a2)+(−b)(ab)+(−b)(b2)
=a3+a2b+ab2−a2b−ab2−b3
=a3−b3
Answer: 100
Step-by-step explanation:
we are given
![\frac{a}{b} (2x-12)=\frac{c}{d}](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%7D%7Bb%7D%20%282x-12%29%3D%5Cfrac%7Bc%7D%7Bd%7D%20)
we can solve for x
We can isolate x
step-1: Multiply both sides by b/a
![\frac{b}{a}*\frac{a}{b} (2x-12)=\frac{b}{a}*\frac{c}{d}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bb%7D%7Ba%7D%2A%5Cfrac%7Ba%7D%7Bb%7D%20%282x-12%29%3D%5Cfrac%7Bb%7D%7Ba%7D%2A%5Cfrac%7Bc%7D%7Bd%7D%20)
![(2x-12)=\frac{bc}{ad}](https://tex.z-dn.net/?f=%20%282x-12%29%3D%5Cfrac%7Bbc%7D%7Bad%7D%20)
step-2:Add 12 both sides
![(2x-12)+12=\frac{bc}{ad}+12](https://tex.z-dn.net/?f=%20%282x-12%29%2B12%3D%5Cfrac%7Bbc%7D%7Bad%7D%2B12%20)
![2x=\frac{bc}{ad}+12](https://tex.z-dn.net/?f=%202x%3D%5Cfrac%7Bbc%7D%7Bad%7D%2B12%20)
step-3: combine right side
![2x=\frac{bc+12ad}{ad}](https://tex.z-dn.net/?f=%202x%3D%5Cfrac%7Bbc%2B12ad%7D%7Bad%7D%20)
step-4:Divide both sides by 2
..............Answer