Answer:
The answer to your question is x = 10
Step-by-step explanation:
Use proportions to solve this problem
Given (x + 4)/8 = (2x + 1)/12
12(x + 4) = 8(2x + 1)
Expand
12x + 48 = 16x + 8
Group like terms
12x - 16x = - 48 + 8
Simplify
-4x = -40
Solve for x
x = -40/-4
Result
x = 10
First we define variables:
x: amount of money Jack has
y: amount of money Eric has
We write the system of equations:
x = y + 80
x - 30 = 2y
Solving the system we have:
x = $130
y = $ 50
Therefore, the amount of money they had at the beginning is:
130 + 50 = $ 180
Answer:
the boys had $ 180 altogether at the beginning
Answer:
x=2, y=1
Step-by-step explanation:
y=x-1
y=3-x
x-1=3-x
2x=4
x=2
Answer:
yx if 4-5
Step-by-step explanation:
what te
Since they are not like terms (not the same variables) you cannot simply so you leave it like that.✨ This applies for addition and subtraction only. It’s different with multiplication and division.✨
