111k views
0 votes
Find the solution of this system of equations. Separate the x- and y- values with a comma.

X= -8+y
-11x+9y=4

User SFC
by
8.3k points

1 Answer

6 votes

\begin{cases}x= -8+y \\ -11x+9y=4 \end{cases}\\ \\\begin{cases}x= -8+y \\ -11 \cdot (-8+y)+9y=4 \end{cases}\\ \\\begin{cases}x= -8+y \\ 88-11y+9y =4 \end{cases}\\ \\\begin{cases}x= -8+y \\ -2y=4 -88\end{cases}\\ \\


\begin{cases}x= -8+y \\ -2y=-84 \ \ / :(-2)\end{cases}\\ \\\begin{cases}x= -8+y \\ y=(-84)/(-2) \end{cases}\\ \\\begin{cases}x= -8+42 \\ y=42 \end{cases}\\ \\\begin{cases}x= 34 \\ y=42 \end{cases}\\ \\


User James Heston
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories