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Solve each problem for the given variable
-3c+ac=ac=4 solve for c
X/Y +4=x/5 solve for x

1 Answer

4 votes
1.
-3c+ac=4

2. Factor out C

c(a-3)=4

3. Divide both sides by a-3

Answer:
c= (4)/(a-3)


1.
(x)/(y) + 4 = (x)/(5)

2. Multiply both sides by
y

x+ 4y= (xy)/(5)

3. Now we need to multiply both sides by 5

5x+20y=xy

4. Change xy to a negative because it is a positive and add it to both sides.

-xy + 5x + 20y= 0

5. Change 20y to a negative and add it to both sides

-xy + 5x= -20 y

6. Now we need to Factor out X

x(-y+5)=-20y

7. Divide both sides by
-y+5

(x(-y+5))/(-y+5) = (-20y)/(-y+5)

Answer:
x= (-20y)/(-y+5)








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