Question

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

Answer 1

x = 9

y = -10

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(-(-5+4y)/(5)\right)+y=8\end{bmatrix}`

Step 2: Simplify

`\begin{bmatrix}(10-3y)/(5)=8\end{bmatrix}`

Step 3: Substitute y=-10

`x=-(-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