Solve for y, x
x=9
y=-17
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x-5=4
Consider the second equation. Swap sides so that all variable terms are on the left hand side.
x=4+5
Add 5 to both sides.
x=9
Add 4 and 5 to get 9.
y=-2\times 9+1
Consider the first equation. Insert the known values of variables into the equation.
y=-18+1
Multiply -2 and 9 to get -18.
y=-17
Add -18 and 1 to get -17.
y=-17 x=9
The system is now solved.
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