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Comments
Multiply both sides of the equation by 40
5(x-16)+8(x+5)=40x-200
Carry the coefficients through the parantheses
5x-80+8x+40=40x-200
collect like terms
13x+120=40x-200
320=27x
solve for x
x=(320/27)
LHS
=(5*(x-16) + 8*(x+5)) / 8*5
=(5x - 80 + 8x + 40) / 40
= (13x - 40)
RHS
=40*(X-5)
= (40X - 200)
200 - 40 = 40x - 13x
160 = 27x
160/27 = x
Caitlin G I have given you a link below for you to find help with Algebra. Planet CD Rom has reasonable CD's you can purchase for Algebra Help. I have list a link below to a web site that has other links as well a Planet CD Rom if you need home work help. Sorry I can not be of any further help to you.