Pre-Algebra Examples

$c + 2 c + 12 = 25$

Step 1

Add $c$ and $2 c$ .

$3 c + 12 = 25$

Step 2

Move all terms not containing $c$ to the right side of the equation.

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Step 2.1

Subtract $12$ from both sides of the equation.

$3 c = 25 - 12$

Step 2.2

Subtract $12$ from $25$ .

$3 c = 13$

Step 3

Divide each term in $3 c = 13$ by $3$ and simplify.

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Step 3.1

Divide each term in $3 c = 13$ by $3$ .

$\frac{3 c}{3} = \frac{13}{3}$

Step 3.2

Simplify the left side.

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Step 3.2.1

Cancel the common factor of $3$ .

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Step 3.2.1.1

Cancel the common factor.

$\frac{3 c}{3} = \frac{13}{3}$

Step 3.2.1.2

Divide $c$ by $1$ .

$c = \frac{13}{3}$