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Step2247 [10]
3 years ago
11

What is the value of x when -3x + 7x = -12?

Mathematics
2 answers:
Nonamiya [84]3 years ago
6 0
-3x + 7x = -12

(-3 + 7)x = -12

4x = -12   (divide 4 from each side)

4x/4 = -12/4

x = -12/4

x = 3 <-answer
Natalka [10]3 years ago
4 0
-3 + 7x = -12

First, simplify -3x + 7x to get 4x. / Your problem should look like: 4x = -12
Second, divide both sides by 4. / Your problem should look like: x = - \frac{12}{4}
Third, simplify \frac{12}{4} to 3. / Your problem should look like: x = -3

Answer: x = -3

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