Pre-Algebra Examples

$m + y = 10$ , $y = 4$

Step 1

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

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Step 1.1

Replace all occurrences of $y$ in $m + y = 10$ with $4$ .

$m + 4 = 10$

$y = 4$

Step 1.2

Simplify the left side.

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Step 1.2.1

Remove parentheses.

$m + 4 = 10$

$y = 4$

$m + 4 = 10$

$y = 4$

$m + 4 = 10$

$y = 4$

Step 2

Move all terms not containing $m$ to the right side of the equation.

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Step 2.1

Subtract $4$ from both sides of the equation.

$m = 10 - 4$

$y = 4$

Step 2.2

Subtract $4$ from $10$ .

$m = 6$

$y = 4$

$m = 6$

$y = 4$

Step 3

Solve the system of equations.

$m = 6 y = 4$

Step 4

List all of the solutions.

$m = 6, y = 4$