Question 1062286
Two quantities, x and y.
{{{x+y=3000}}}


The x quantity gave 2% profit.
{{{0.02*x}}}


The y quantity gave 7% profit,
{{{0.07*y}}}


Total amount of profit was 130 dollars.
{{{0.02x+0.07y=130}}}


SYSTEM OF LINEAR EQUATIONS
{{{system(2x+7y=13000,x+y=3000)}}}
If you are comfortable solving this kind of system, then you can continue from here.