Can you include pictures?
Answer:
x = -3
y = 7
Step-by-step explanation:
x + 3y = 18
-3x - 12y = -75
multiply first equation by 4
4 × (x + 3y) = 18 ➡ 4x + 12y = 72
now add the two equations up
4x + 12y - 3x -12y = 72 - 75 (-12y will eliminate 12y)
x = -3
Hello :
<span>y = x – 10...(1)
2x + y = 4....(2)
subsct in (2) : 2x+x-10=4
3x =14
x=14/3
y = 14/3-10 =-16/3
</span>
For this case we must solve the following equation:

To solve we follow the steps below:
We square both sides of the equation squared:

We choose the positive value because we talk about $. 
Answer:
$6
Answer:
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Step-by-step explanation: