SOLUTION: Problem: 6 times julie's age is decreased by 112, the result is twice julie's age. How old is julie? this is how i started: 6x - 112 = 2x 3x

SOLUTION: Problem: 6 times julie's age is decreased by 112, the result is twice julie's age. How old is julie? this is how i started: 6x - 112 = 2x 3x - 112 = x now what? do i sub

Question 226114: Problem: 6 times julie's age is decreased by 112, the result is twice julie's age. How old is julie?
this is how i started:
6x - 112 = 2x
3x - 112 = x
now what? do i subract 3 from each side or divide each side by 3? Have I left out something in the equation?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Problem: 6 times julie's age is decreased by 112, the result is twice julie's age. How old is julie?
this is how i started:
:
This is correct equation
6x - 112 = 2x
3x - 112 = x
However if you want to simplify, you have to divide each term by 2, should be:
3x - 56 = x
:
we want to perform operations that will get the unknown (x) on the left and the numerical values on the right
:
subtract x from both sides
3x - x - 56 = 0
add 56 to each side
2x = 56
:
Divide both sides by 2
x =
x = 28 yrs old
:
:
now check the solution in the original statement
" 6 times julie's age is decreased by 112, the result is twice julie's age."
6(28) - 112 = 2(28)
168 - 112 = 56
56 = 56, confirms the solution
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