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tankabanditka [31]
3 years ago
11

How do you solve 3x+7=x

Mathematics
2 answers:
vredina [299]3 years ago
8 0
3x + 7 = x

First, subtract 3x from both sides. / Your problem should look like: 7 = x - 3x
Second, simplify x - 3x to -2x. / Your problem should look like: 7 = -2x
Third, divide both sides by -2. / Your problem should look like: \frac{7}{-2} = x
Fourth, simplify \frac{7}{-2} to -\frac{7}{2} / Your problem should look like: - \frac{7}{2} = x
Fifth, switch sides. / Your problem should look like: x = -\frac{7}{2}

Answer as fraction: -\frac{7}{2}
Answer as decimal: -3.5


Marizza181 [45]3 years ago
7 0
3x + 7 = x
3x - x = -7
2x = -7
x = - 7/2
x = -3.5
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