Question 667775


{{{12-15x=25-5x}}}......add {{{15x}}} to both sides


{{{12-15x+15x=25-5x+15x}}}

{{{12-cross(15x)+cross(15x)=25+10x}}}

{{{12=25+10x}}}.....add {{{-25}}} to both sides

{{{12-25=25-25+10x}}}

{{{12-25=cross(25)-cross(25)+10x}}}

{{{-13=10x}}}

{{{-13/10=x}}}

{{{highlight(x=-1.3)}}}


{{{12-10x=25}}}....add {{{-12}}} to both sides

{{{12-12-10x=25-12}}}

{{{cross(12)-cross(12)-10x=13}}}

{{{10x=13}}}

{{{x=13/10}}}

{{{highlight(x=1.3)}}}