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3 years ago

What is the answer to this please? -3(x+2)+5x = -9

Mathematics

2 answers:

Semenov [28]3 years ago

5 0

Answer:

$-3(x+2)+5x=-9\\-3x-6+5x=-9\\-3x+5x=-9+6\\2x=-3\\x=-\frac{3}{2}$

DaniilM [7]3 years ago

4 0

Remember pemdas

First simplify the expression -3(2x)+5x=-9

Next multiply -3•2x=-6x
Now the expression is -6x+5x=-9

Add the alike variables it would be the same as 6x-5x now u just have x

X=-9

Hope that helps and u should download Photomath it helps a lot

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3 years ago

Read 2 more answers

I solved 4, the answer is 11, seconds: 5x+4(x-3)=87 = x=11, but I don't know how to solve number 5, please anyone explain how to

liq [111]

The answer x = 11 is correct for problem 4. Nice work.

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5*x =(5 m/s)*(x meters) = (5 m/s)*(11 seconds) = 5*11 = 55 meters

The answer to problem five is 55 meters

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Answer: what are the options?

Step-by-step explanation:

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wariber [46]

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stiks02 [169]

Answer:

Step-by-step explanation:

Set this up as a proportion, with inches on the top and feet on the bottom for our scale. We will find the actual length first, then we'll find the width.

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Cross multiply to get that the actual length is 5(2.5) = 12.5 feet. Now for the width:

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3 years ago