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3 years ago

3x+2-5x=10 what does x equal

Mathematics

2 answers:

lord [1]3 years ago

7 0

Answer: x=-4

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helps you out! ☺ Let me know if you need anymore help with math and I will be more than happy to help you out! ☺

-Karleif-

Kamila [148]3 years ago

3 0

First we combine like terms : 3x + 2 - 5x = 10

-2x + 2 = 10

Then we subtract 2 ( on both sides ) : -2x = 8

Then divide by -2 ( on both sides ) : x = -4

x = -4 is your answer! :>

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4 years ago

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3 years ago

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What is the sum of StartRoot negative 2 EndRoot and StartRoot negative 18 EndRoot? 4 StartRoot 2 EndRoot 4 StartRoot 2 EndRoot i

Sveta_85 [38]

Adding $\sqrt{-2}\,\,and\,\,\sqrt{-18}$ we get $4\sqrt{2i}$

Option C 4 StartRoot 2 EndRoot i is correct.

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$\sqrt{-2}$ can be written as $\sqrt{2}i$

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Option C 4 StartRoot 2 EndRoot i is correct.

Keywords: Square root expressions

Learn more about Square root expressions at:

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6 0

3 years ago

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Maggie tells you she is deciding between two jobs for which the pay is calculated by the functions A(x) = 5x+20 B(x) = 20x+5 Exp

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Answer:

B(x) is the better option

Step-by-step explanation:

Let's say that these functions represent the pay f(x) in hours, x. Function B would increase linearly on a greater scale because each X is being multiplied by 20.

You'll notice this trend for larger numbers, such as 10.

A(x) = 5(10) + 20 = 70

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Therefore, your answer is B.

4 0

3 years ago

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