Question

math problem

Answer 1

@florisalreadytaken

Answer 2

@astrid1

Answer 3

lets first solve for x

\[\begin{cases}y=-2x-2\\ 7x+3y=-9 \end{cases}\]
its already there 4 us -- just plug the y value in
\[ 7x+3(-2x-2)=-9 \]
\[ 7x + \ -3\cdot 2x-3 \cdot 2=−9 \]
\[ 7x + \ -6x-6 =−9 \]
\[ 7x−6x−6=−9 \]
\[ x-6=-9 \]
\[ x=-3 \]

Answer 4

sorry i have to go -- @snowflake0531 finish it 4 me please. thanks.

Answer 5

Well, flor has already solve x for you, as -3
So now use
x= -3
into y= -2x -2, and solve for y

y=-2(-3) -2

Answer 6

4

Answer 7

yep