Algebra Examples

$A = \frac{h (a + b)}{2}$

Step 1

Rewrite the equation as $\frac{h (a + b)}{2} = A$ .

$\frac{h (a + b)}{2} = A$

Step 2

Multiply both sides of the equation by $2$ .

$2 \frac{h (a + b)}{2} = 2 A$

Step 3

Simplify the left side.

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Step 3.1

Simplify $2 \frac{h (a + b)}{2}$ .

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Step 3.1.1

Cancel the common factor of $2$ .

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Step 3.1.1.1

Cancel the common factor.

$2 \frac{h (a + b)}{2} = 2 A$

Step 3.1.1.2

Rewrite the expression.

$h (a + b) = 2 A$

$h (a + b) = 2 A$

Step 3.1.2

Apply the distributive property.

$h a + h b = 2 A$

$h a + h b = 2 A$

$h a + h b = 2 A$

Step 4

Subtract $h a$ from both sides of the equation.

$h b = 2 A - h a$

Step 5

Divide each term in $h b = 2 A - h a$ by $h$ and simplify.

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Step 5.1

Divide each term in $h b = 2 A - h a$ by $h$ .

$\frac{h b}{h} = \frac{2 A}{h} + \frac{- h a}{h}$

Step 5.2

Simplify the left side.

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Step 5.2.1

Cancel the common factor of $h$ .

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Step 5.2.1.1

Cancel the common factor.

$\frac{h b}{h} = \frac{2 A}{h} + \frac{- h a}{h}$

Step 5.2.1.2

Divide $b$ by $1$ .

$b = \frac{2 A}{h} + \frac{- h a}{h}$

$b = \frac{2 A}{h} + \frac{- h a}{h}$

$b = \frac{2 A}{h} + \frac{- h a}{h}$

Step 5.3

Simplify the right side.

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Step 5.3.1

Simplify each term.

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Step 5.3.1.1

Cancel the common factor of $h$ .

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Step 5.3.1.1.1

Cancel the common factor.

$b = \frac{2 A}{h} + \frac{- h a}{h}$

Step 5.3.1.1.2

Divide $- 1 a$ by $1$ .

$b = \frac{2 A}{h} - 1 a$

$b = \frac{2 A}{h} - 1 a$

Step 5.3.1.2

Rewrite $- 1 a$ as $- a$ .

$b = \frac{2 A}{h} - a$

$b = \frac{2 A}{h} - a$

$b = \frac{2 A}{h} - a$

$b = \frac{2 A}{h} - a$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$