sorry Tertre the answer is incorrect the number needs to be a whole number
5([x-1/2]-1) +2x = 5+x
3
Multiply both sides by 3
5 ( [ x - 1/2 ] - 1 ) + 2x = 3(5 + x)
5 ( x - 3/2) + 2x = 15 + 3x
5x - 15/2 + 2x = 15 + 3x
7x - 15/2 + 15 + 3x
4x = 15 + 15/2
4x = 45/2
x = (45/2) ( 1/4) = 45 / 8
I'm sorry CPhill you are incorrect the answer is a whole number, not a fraction
well I believe that everyone miss understood its x subtract 1 then divided by 2
x-1
2
(5([x-1]/2-1)+2x)/3=5+x / multiply both sides by 3
5([x-1]/2-1)+2x=15+3x/ subtract 2x from both sides
5([x-1]/2-1)=2.5*x-7.5=15+x/ subtract (x-7.5) fdrom both sides
1.5*x=22.5 /divide both sides by 1.5
x=15
am i right?