Question 85668
2/5=x-2/20 Solve for x.
:
Assume you mean:
{{{2/5}}} = {{{((x-2))/20}}}
:
First get rid of the denominators, multiply the equation by 20:
{{{(20)2/5}}} = {{{(20)((x-2))/20}}}
Leaving you with:
4(2) = x - 2
8 = x - 2
8 + 2 = x: added 2 to both sides:
x = 10
:
Check, substitute 10 for x:
{{{2/5}}} = {{{((10-2))/20}}}
{{{2/5}}} = {{{8/20}}}  same as {{{2/5}}} = {{{2/5}}}