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Dmitry [639]
3 years ago
7

-3x + 7x = -12 what is X?

Mathematics
2 answers:
Oduvanchick [21]3 years ago
8 0

Answer:

-3x+7x= 4x

Step-by-step explanation:

x= -3

frozen [14]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

-3x + 7x = -12

-3x + 7x = 4x

4x = 12

4/4 = 1

12/4 = 3

x = 3

Hope this helps .-.

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Answer:

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Step-by-step explanation:

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But, that looks a bit hectic. Instead of dividing, you can multiply by the reciprocal (which is essentially how to divide fractions). So, instead of \frac{1}{4}÷\frac{3}{5}, you get:

\frac{1}{4}×\frac{5}{3}

When multiplying fractions, remember you can just multiply straight across-- numerator x numerator, then denominator x denominator.

By doing that, you get the fraction \frac{5}{12}

\frac{5}{12} cannot be simplified any more, so S=\frac{5}{12} is your answer :)

I hope this helps

6 0
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Step-by-step explanation:

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