Pre-Algebra Examples

$17 + 2 n = 21 + 2 n$

Step 1

Move all terms containing $n$ to the left side of the equation.

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Step 1.1

Subtract $2 n$ from both sides of the equation.

$17 + 2 n - 2 n = 21$

Step 1.2

Combine the opposite terms in $17 + 2 n - 2 n$ .

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Step 1.2.1

Subtract $2 n$ from $2 n$ .

$17 + 0 = 21$

Step 1.2.2

Add $17$ and $0$ .

$17 = 21$

Step 2

Since $17 \neq 21$ , there are no solutions.

No solution