Posted by Jonah on Saturday, June 11, 2011 at 11:05pm.
Jon, Anne, Tom, Jonah --
I solved your first two problems. Now it's your turn. We'll be glad to check your answers.
7(x-2)+3(x+2)=5(x-6)
7*x-7*2+3*x+3*2=5*x-5*6
7x-14+3x+6=5x-30
7x+3x-5x= -30+14-6
5x= -22 Divide with 5
x= -22/5
I got a different answer, Anonymous.
7(x-2)+3(x+2)=5(x-6)
7x-14+3x+6=5x-30 -distribute
10x-14+6=5x-30 -combine like terms
10x-8=5x-30 -get x's on 1 side
5x-8=-30
5x=-22 -isolate the x
x=-22/5
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