SOLUTION: Please help me solve this equation: 8-w/10=3/5

Algebra ->  Equations -> SOLUTION: Please help me solve this equation: 8-w/10=3/5      Log On


   



Question 576128: Please help me solve this equation:
8-w/10=3/5

Answer by Maths68(1474) About Me  (Show Source):
You can put this solution on YOUR website!
%288-w%29%2F10=3%2F5
Multiply by 10 both sides
%2810%29%288-w%29%2F10=%2810%29%283%2F5%29
cross%2810%29%288-w%29%2Fcross%2810%29=cross%2810%29%283%2Fcross%285%29%29
8-w=%282%29%283%29
8-w=6
-w=6-8
-w=-2
Cancel out (-)
w=2





8-%28w%2F10%29=3%2F5
%28%2810%29%288%29-w%29%2F10=3%2F5
%2880-w%29%2F10=3%2F5
80-w=%2810%29%283%2F5%29
80-w=cross%2810%29%283%2Fcross%285%29%29
80-w=%282%29%283%29
80-w=6
-w=6-80
-w=-74
Cancel out (-)
w=74