Answer:

Step-by-step explanation:
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations (this isn't a sponsor I've just been using it since the 6th grade lol).
2x-y=4
Therefore: y=2x-4
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5x-10/4(2x-4)=10
5x-5/2(2x-4)=10
5x-5x+10=10
10=10
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*Problem can't be solved.
The equation for slope is <u>y² - y
</u> x² - x
So it would be: <u>8 - (-20)</u> or <u>8 + 20
</u> 5 - 3 5 - 3
<u>28</u>
2
Then, you have to reduce it, divide both by two.
<u>14</u>
1
Since it is over 1, then it is just the numerator.
Your final is:
<em>Slope = 14</em>
Answer:
Add -4x to both sides--> 6x+9=4x-3 and 2x+9=-3
multiply both sides by -1/4 --> -4(5x+7)=-18 and 5x-7=4.5
multiply both sides by 1/4--> 12x+4=20x+24 and 3x+1=5x+6
multiply both sides by -4--> -5x/4=4 and 5x=-16
add -4 to both sides--> 8-10x=7+5x and 4-10x=3+5x
Answer:
Write how many groups of tens there are
Circle groups where there are ten groups of tens
Write how many hundreds there are
Write the total number of tens and hundreds there are