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3 years ago

-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: $x=\frac{11}{5}$

Simplify both sides of the equation

$-15+12x=5x+7+-3x$

$12x-15=(5x+-3x)+(7)$ (Combine Like Terms)

$12x-15=2x+7$

Subtract 2x from both sides

$12x-15-2x=2x+7-2x\\10x-15=7$

Divide both sides by 10

$\frac{10x}{10} =\frac{22}{10}$

$x=\frac{11}{5}$

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