Question 167967
{{{y=2x+9}}} Start with the given equation.



{{{y-2x=9}}} Subtract {{{2x}}} from both sides.



{{{-2x+y=9}}} Rearrange the terms.



{{{2x-y=-9}}} Multiply EVERY term by -1 to make the "x" coefficient positive



So the answer in standard form {{{Ax+By=C}}} is {{{2x-y=-9}}}.