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GenaCL600 [577]
3 years ago
10

-15 + 12x = 5x + 7 -3x SOLVE FOR X

Mathematics
2 answers:
tino4ka555 [31]3 years ago
7 0

Answer:

x = 2.2

Step-by-step explanation:

- 15 + 12x = 5x + 7 - 3x \\  + 12x - 5x + 3x = 15 + 7 \\ 10x = 22 \\  \frac{10x}{10}  =  \frac{22}{10}  \\ x = 2.2

Natali [406]3 years ago
6 0

Answer: x=\frac{11}{5}

<u>Simplify both sides of the equation</u>

<u></u>-15+12x=5x+7+-3x<u></u>

<u></u>12x-15=(5x+-3x)+(7) (Combine Like Terms)

12x-15=2x+7

<u>Subtract 2x from both sides</u>

<u></u>12x-15-2x=2x+7-2x\\10x-15=7<u></u>

<u></u>

<u>Divide both sides by 10</u>

<u></u>\frac{10x}{10} =\frac{22}{10}<u></u>

<u></u>x=\frac{11}{5}<u></u>

<u></u>

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