3 years ago

Which of the following describes the correct process for solving the equation 3x+6=21 and arrives at the correct solution?

1 answer:

4 0

The correct solution is C

Subtract 6 from both sides of the equation
3x + 6 - 6 = 21 - 6
3x = 15

Then divide both sides by 3

$\frac{3x}{3} = \frac{15}{3}$

x = 5

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