Finite Math Examples

$a = 5$ , $s = a + 7$

Step 1

Replace all occurrences of $a$ with $5$ in each equation.

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Step 1.1

Replace all occurrences of $a$ in $s = a + 7$ with $5$ .

$s = (5) + 7$

$a = 5$

Step 1.2

Simplify the right side.

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Step 1.2.1

Add $5$ and $7$ .

$s = 12$

$a = 5$

$s = 12$

$a = 5$

$s = 12$

$a = 5$

Step 2

List all of the solutions.

$s = 12, a = 5$