y=x+7,x=2
Question
\left\{ \begin{array}{l}y=x+7\\x=2\end{array}\right.
Solve the system of equations
Solution
\left(x,y\right) = \left(2,9\right)
Evaluate
\left\{ \begin{array}{l}y=x+7\\x=2\end{array}\right.
Calculate
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Calculate
y=x+7
Add or subtract both sides
y-\left(x+7\right)=0
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
y-x-7=0
\left\{ \begin{array}{l}y-x-7=0\\x=2\end{array}\right.
Calculate
\left\{ \begin{array}{l}x=2\\y=9\end{array}\right.
Check the solution
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Check the solution
\left\{ \begin{array}{l}9=2+7\\2=2\end{array}\right.
Simplify
\left\{ \begin{array}{l}9=9\\2=2\end{array}\right.
Evaluate
\text{true}
\left\{ \begin{array}{l}x=2\\y=9\end{array}\right.
Solution
\left(x,y\right) = \left(2,9\right)