Basic Math Examples

$9 n - 10 - 7 n = - 9 + 2 n - 1$

Step 1

Subtract $7 n$ from $9 n$ .

$2 n - 10 = - 9 + 2 n - 1$

Step 2

Subtract $1$ from $- 9$ .

$2 n - 10 = 2 n - 10$

Step 3

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

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Step 3.1

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

$2 n - 10 - 2 n = - 10$

Step 3.2

Combine the opposite terms in $2 n - 10 - 2 n$ .

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Step 3.2.1

Subtract $2 n$ from $2 n$ .

$0 - 10 = - 10$

Step 3.2.2

Subtract $10$ from $0$ .

$- 10 = - 10$

Step 4

Since $- 10 = - 10$ , the equation will always be true for any value of $n$ .

All real numbers

Step 5

The result can be shown in multiple forms.

All real numbers

Interval Notation:

$(- \infty, \infty)$