Question

-10x - 8y = -10 ; 2x + y = 8

Answer 1

Answer:

x = 9

y = -10

Step-by-step explanation:

2x + y = 8

Subract 2x from both sides to get y = 8 - 2x.

-10x - 8(8 - 2x) = -10

-10x - 64 + 16x = -10

6x - 64 = -10

6x = 54

x = 9

2(9) + y = 8

18 + y = 8

y = -10

Answer 2

Step-by-step explanation:    

Step 1: Isolate x for -10x - 8y

$\begin{bmatrix}2\left(-\frac{-5+4y}{5}\right)+y=8\end{bmatrix}$

Step 2: Simplify

$\begin{bmatrix}\frac{10-3y}{5}=8\end{bmatrix}$

Step 3: Substitute y=-10

$x=-\frac{-5+4\left(-10\right)}{5}$

Step 4: Solve

$x=9$

ANSWER: $x=9,\:y=-10$

Easy Steps: See Attachment

Graph: See Attachment

Answer:    

x=9 and y=−10

   

Hope this helps