SOLUTION: 5(x-1)=2x+4(x-1) find check. -(3-2n)+7n=3(N+3) find check. im in tears trying to figure this out

Algebra ->  Linear-equations -> SOLUTION: 5(x-1)=2x+4(x-1) find check. -(3-2n)+7n=3(N+3) find check. im in tears trying to figure this out      Log On


   

Question 173715: 5(x-1)=2x+4(x-1)
find check.
-(3-2n)+7n=3(N+3)
find check.
im in tears trying to figure this out
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
5(x-1)=2x+4(x-1).....first of all distributive property for multiplicaton states
:
a(b+c)=ab+ac.......you have to distribute 2 terms in this
:
5x-5=2x+4x-4
:
5x-5=6x-4....now subtract 5x and add 4 to both sides of the equation
:
cross%28-5x%29%2Bcross%285x%29-5=x%2B+cross%286x%29%2Bcross%28-5x%29-4
:
-5=x-4now add 4 to both sides
:
highlight%28x=-1%29
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-(3-2n)+7n=3(N+3)
:
-3+2n+7n=3n+9
:
-3+9n=3n+9
:
6n=12
:
highlight%28n=2%29