Question

GIVING MEDAL!!!!

Find the solution for this system of equations. Separate the x- and y- values with a comma.

x+6y=7
x-y=-7

Answer 1

@mia99

Answer 2

$\begin{bmatrix}x+6y=7 \\x-y=-7\end{bmatrix}$

Answer 3

x+6y=7

Answer 4

x+6y-6y=7-6y
x=7-6y

Answer 5

[ (7−6y)−y=−7 ]

Answer 6

[ (7−6y)−y=−7 ]
7-7y=-7
7-7y-7=-7-7
-7y=-14

Answer 7

\[\frac{-7y}{-7}=\frac{-14}{-7}\]

Answer 8

y=2

Answer 9

\[\mathrm{For\:}x=7-6y\]

Answer 10

\[\mathrm{Subsititute\:}y=2\]

Answer 11

\[x=7-6\left(2\right)\quad \Rightarrow \quad x=-5\]

Answer 12

\[The\:solutions\:\to\:the\:system\:of\:equationts\:are:\]
\[y=2,\:x=-5\]

Answer 13

@Rosales0228