Algebra Examples

$v_{f} = v_{i} + a \cdot t$

Step 1

Reorder $v_{i}$ and $a t$ .

$v_{f} = a t + v_{i}$

Step 2

Solve the equation for $v_{i}$ .

Tap for more steps...

Multiply $a$ by $t$ .

$a t + v_{i} = v_{i} + a t$

Move all terms not containing $v「+i」$ to the right side of the equation.

Tap for more steps...

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

$v_{i} = v_{i} + a t - a t$

Subtract $v_{i}$ from both sides of the equation.

$0 = v_{i} + a t - a t - v_{i}$

Combine the opposite terms in $v_{i} + a t - a t - v_{i}$ .

Tap for more steps...

Subtract $a t$ from $a t$ .

$0 = v_{i} + 0 - v_{i}$

Add $v_{i}$ and $0$ .

$0 = v_{i} - v_{i}$

Subtract $v_{i}$ from $v_{i}$ .

$0 = 0$

Since $0 = 0$ , the equation will always be true.

Always true