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Lisa [10]
3 years ago
8

What is the simplest form of the expression (–12.7y – 3.1x) + 5.9y – (4.2y + x)?

Mathematics
2 answers:
Doss [256]3 years ago
7 0

Answer:

<h2>-11y - 4.1x</h2>

Step-by-step explanation:

(-12.7y-3.1x)+5.9y-(4.2y+x)\\\\=-12.7y-3.1x+5.9y-4.2y-x\qquad\text{combine like terms}\\\\=(-12.7y+5.9y-4.2y)+(-3.1x-x)\\\\=-11y-4.1x

Vlad [161]3 years ago
3 0

Answer:

I just did the question its-11

Step-by-step explanation:

solve ppls

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3 years ago
What is the solution of the system? Use elimination. <br> 3x - 4y = 9<br> -3x + 2y = 9
densk [106]
You add two equations together to eliminate a variable. This particular problem is nice, because it's already setup to eliminate X.

3x - 4y = 9
<span>-3x + 2y = 9
</span>
When we add these two together, 3x - 3x cancels each other out, leaving us with 0x, or nothing.

We continue with -4y + 2y (leaves us with -2y) and 9+9 (18).

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Now we have y = -9, and we can go back into the problems to solve for x.

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Confirm with the final equation:

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6 0
3 years ago
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The piecewise function h(x) is shown on the graph.
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Step-by-step explanation/Answer:

<u><em>The value for h(3) is 1.</em></u>

<u><em>Coordinate (3,1)</em></u>

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3 years ago
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