Solve for x, Δ
x=20
\Delta =92
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2x=40
Consider the first equation. Combine x and x to get 2x.
x=\frac{40}{2}
Divide both sides by 2.
x=20
Divide 40 by 2 to get 20.
\Delta -20=72
Consider the second equation. Insert the known values of variables into the equation.
\Delta =72+20
Add 20 to both sides.
\Delta =92
Add 72 and 20 to get 92.
x=20 \Delta =92
The system is now solved.
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