Finite Math Examples

$A - B = A + (- 1) B$

Step 1

Rewrite $- 1 B$ as $- B$ .

$A - B = A - B$

Step 2

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

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Step 2.1

Add $B$ to both sides of the equation.

$A - B + B = A$

Step 2.2

Combine the opposite terms in $A - B + B$ .

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Step 2.2.1

Add $- B$ and $B$ .

$A + 0 = A$

Step 2.2.2

Add $A$ and $0$ .

$A = A$

Step 3

The variable $B$ got canceled.

All real numbers

Step 4

The result can be shown in multiple forms.

All real numbers

Interval Notation:

$(- \infty, \infty)$