Algebra Examples

$\frac{1}{2} a < 20$

Step 1

Multiply each term in $\frac{1}{2} a < 20$ by $2$ .

$\frac{1}{2} a \cdot 2 < 20 \cdot 2$

Step 2

Simplify the left side.

Tap for more steps...

Step 2.1

Combine $\frac{1}{2}$ and $a$ .

$\frac{a}{2} \cdot 2 < 20 \cdot 2$

Step 2.2

Cancel the common factor of $2$ .

Tap for more steps...

Step 2.2.1

Cancel the common factor.

$\frac{a}{2} \cdot 2 < 20 \cdot 2$

Step 2.2.2

Rewrite the expression.

$a < 20 \cdot 2$

Step 3

Simplify the right side.

Tap for more steps...

Step 3.1

Multiply $20$ by $2$ .

$a < 40$

Step 4

The result can be shown in multiple forms.

Inequality Form:

$a < 40$

Interval Notation:

$(- \infty, 40)$