Use any method to solve the system of linear equations,find (x,y). $$\left\{ \begin{array} { l }
y = - 7 x - 12 \
y = 7 - 8 x
\end{array} \right.$$
A)(145,19)
B)(-19,145)
C)(19,-145)
D)(145,-19)
E)(-145,19)

Question

Use any method to solve the system of linear equations,find (x,y). ​​ $$\left\{ \begin{array} { l } 
y = - 7 x - 12 \
y = 7 - 8 x
\end{array} \right.$$ ​
A)​(145,19)
B)​​(-19,145)
C)​(19,-145)
D)​​(145,-19)
E)​​(-145,19)

Quizplus · Accepted Answer

To solve the system of equations, set the two expressions for $y$ equal to each other: $-7x - 12 = 7 - 8x$. Solving for $x$, add $8x$ to both sides and add $12$ to both sides to get $x = 19$. Substitute $x = 19$ into one of the original equations to find $y$: $y = 7 - 8(19) = 7 - 152 = -145$. Therefore, the solution is $(x, y) = (19, -145)$.

Use Any Method to Solve the System of Linear Equations,find {y=−7x−12y=7−8x\left\{ \begin{array} { l } y = - 7 x - 12 \\y = 7 - 8 x\end{array} \right.{y=−7x−12y=7−8x​

Use Any Method to Solve the System of Linear Equations,find $\left\{ \begin{array} { l } y = - 7 x - 12 \\y = 7 - 8 x\end{array} \right.$