Question 898298
1. {{{9/5+(4/5)x=21/10+(3/2)x+1/2}}}
{{{(4/5)x-(3/2)x=21/10+1/2-9/5}}}
{{{-(7/10)x=21/10+1/2-9/5}}}
{{{-(7/10)x=4/5}}}
{{{x=(4/5)}}}÷{{{-(7/10)}}}
{{{x=(4/5)}}}*{{{-(10/7)}}}
{{{x=-1&1/7}}}

2. {{{8x-12=4x}}}
{{{8x-4x=12}}}
{{{4x=12}}}
{{{x=12/4}}}
{{{x=3}}}