Basic Math Examples

$3 + 2 \cdot a + b \cdot 4 \div 2 - 4$

Step 1

Simplify each term.

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Step 1.1

Rewrite the division as a fraction.

$3 + 2 a + \frac{b \cdot 4}{2} - 4$

Step 1.2

Cancel the common factor of $4$ and $2$ .

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Step 1.2.1

Factor $2$ out of $b \cdot 4$ .

$3 + 2 a + \frac{2 (b \cdot 2)}{2} - 4$

Step 1.2.2

Cancel the common factors.

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Step 1.2.2.1

Factor $2$ out of $2$ .

$3 + 2 a + \frac{2 (b \cdot 2)}{2 (1)} - 4$

Step 1.2.2.2

Cancel the common factor.

$3 + 2 a + \frac{2 (b \cdot 2)}{2 \cdot 1} - 4$

Step 1.2.2.3

Rewrite the expression.

$3 + 2 a + \frac{b \cdot 2}{1} - 4$

Step 1.2.2.4

Divide $b \cdot 2$ by $1$ .

$3 + 2 a + b \cdot 2 - 4$

$3 + 2 a + b \cdot 2 - 4$

$3 + 2 a + b \cdot 2 - 4$

Step 1.3

Move $2$ to the left of $b$ .

$3 + 2 a + 2 b - 4$

$3 + 2 a + 2 b - 4$

Step 2

Subtract $4$ from $3$ .

$2 a + 2 b - 1$

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