Question 344447
1.{{{3a-4b=-22}}}
2.{{{-3a+b=0}}} 
From eq. 2,
{{{3a=b}}}
Now substitute into eq. 1,
{{{3a-4b=-22}}}
{{{b-4b=-22}}}
Solve for {{{b}}}
Once you have {{{b}}} use either equation to solve for {{{a}}}.