Work: Y=3/(10-x ) Solve for x ×(10-x) both sides Y (10-x)=3 10y-xy=3 -10y both sides -xy=-10y+3 ÷-y both sides X=(10y-3)/y Simplify X=10y/y-3/y X=10-3/y Answer: x=10-3/y Check your work: plug in x Y=3/(10-(10-3/y)) Simplify Y=3/(10-10+3/y) Y=3/(3/y) Y=3×y/3 Y=y The answer is correct