(x - 39) + (x + 61) = x - 39 + x + 61 = (x + x) + (-39 + 61) = 2x + 22
Answer:
36
Step-by-step explanation:
Answer:
4, 22 See below
Step-by-step explanation:
2x + y = 30
5x + y = 42
Subtract the first from the second
3x = 12
x = 4 so socks cost $4
Put that into one of the original equations
2x + y = 30
2(4) + y = 30
8 + y = 30
y = 22 slippers cost $22
Answer:
![y=\frac{x}{3}](https://tex.z-dn.net/?f=y%3D%5Cfrac%7Bx%7D%7B3%7D)
Step-by-step explanation:
<u><em>The question is</em></u>
Solve for y
we have
![x=3y](https://tex.z-dn.net/?f=x%3D3y)
Solve for y
That means ---> isolate the variable y
Divide by 3 both sides
![\frac{x}{3}=\frac{3y}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D%3D%5Cfrac%7B3y%7D%7B3%7D)
Simplify right side
![\frac{x}{3}=y](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D%3Dy)
Rewrite
![y=\frac{x}{3}](https://tex.z-dn.net/?f=y%3D%5Cfrac%7Bx%7D%7B3%7D)
therefore
Your answer is correct