Finite Math Examples

$a = 3 t$ , $y = 5 - t$ , $t = 4$

Step 1

Replace all occurrences of $t$ with $4$ in each equation.

Tap for more steps...

Step 1.1

Replace all occurrences of $t$ in $a = 3 t$ with $4$ .

$a = 3 (4)$

$t = 4$

$y = 5 - t$

Step 1.2

Simplify the right side.

Tap for more steps...

Step 1.2.1

Multiply $3$ by $4$ .

$a = 12$

$t = 4$

$y = 5 - t$

$a = 12$

$t = 4$

$y = 5 - t$

Step 1.3

Replace all occurrences of $t$ in $y = 5 - t$ with $4$ .

$y = 5 - (4)$

$a = 12$

$t = 4$

Step 1.4

Simplify the right side.

Tap for more steps...

Step 1.4.1

Simplify $5 - (4)$ .

Tap for more steps...

Step 1.4.1.1

Multiply $- 1$ by $4$ .

$y = 5 - 4$

$a = 12$

$t = 4$

Step 1.4.1.2

Subtract $4$ from $5$ .

$y = 1$

$a = 12$

$t = 4$

$y = 1$

$a = 12$

$t = 4$

$y = 1$

$a = 12$

$t = 4$

$y = 1$

$a = 12$

$t = 4$

Step 2

List all of the solutions.

$y = 1, a = 12, t = 4$