Pre-Algebra Examples

$20 = 4 (\frac{t}{4} - 2)$

Step 1

Rewrite the equation as $4 (\frac{t}{4} - 2) = 20$ .

$4 (\frac{t}{4} - 2) = 20$

Step 2

Simplify $4 (\frac{t}{4} - 2)$ .

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Step 2.1

Apply the distributive property.

$4 \frac{t}{4} + 4 \cdot - 2 = 20$

Step 2.2

Cancel the common factor of $4$ .

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Step 2.2.1

Cancel the common factor.

$4 \frac{t}{4} + 4 \cdot - 2 = 20$

Step 2.2.2

Rewrite the expression.

$t + 4 \cdot - 2 = 20$

Step 2.3

Multiply $4$ by $- 2$ .

$t - 8 = 20$

Step 3

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

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Step 3.1

Add $8$ to both sides of the equation.

$t = 20 + 8$

Step 3.2

Add $20$ and $8$ .

$t = 28$