Question 198292
Solve for one variable.
{{{7m+n=48}}}--->{{{n=48-7m}}}
Substitute & Solve
{{{m-6(48-7m)=13}}}
{{{m-288+42m=13}}}
{{{43m=301}}}
{{{m=7}}}
Resubstitute & Solve
{{{7(7)+n=48}}}
{{{49+n=48}}}
{{{n=-1}}}
Check
{{{(7)-6(-1)=13}}}
{{{7+6=13}}}
{{{13=13}}}