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3 years ago

Please help me!!!-x + (−3) = x + 3

Mathematics

2 answers:

Sedbober [7]3 years ago

8 0

Step-by-step explanation:

-x - 3 = x + 3

Solving like terms

-3 - 3 = x + x

-6 = 2x

-6 / 2 = x

-3 = x

RSB [31]3 years ago

3 0

Answer:

-3

Step-by-step explanation:

You are trying to solve for x in this situation. So the first thing you want to do is choose a side (it doesn't matter in this situation bc there is an x on either side of the =) and isolate the x.

**I'm going to choose the left side cause why not** Add the -3 to both sides to get -x by itself:

-x + (−3) = x + 3

-x -3= x+3

* quick side note, when you add a negative number to a positive, it has the same effect as subtracting

-x=x+6

Now -x is by itself but there is still another x, so combine like terms again:

-2x=6

Now simplify by dividing -2 to both sides:

x=-3

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HACTEHA [7]

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2 years ago

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Sunny_sXe [5.5K]

Answer:

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Step-by-step explanation:

I tried multiple versions but I finally got it right.

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3 years ago

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ki77a [65]

Answer:

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Step-by-step explanation:

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Find the exact value of cos 120° in simplest form with a rational<br> denominator.

IRINA_888 [86]

Given:

cos 120°

To find:

The exact value of cos 120° in simplest form with a rational denominator.

Solution:

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3 years ago

Please help me!!!-x + (−3) = x + 3 ​

Please help me!!!-x + (−3) = x + 3