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Basic Math
Arithmetic
Fractions & Decimals
Ratios & Proportions
Percentages
Basic Number Theory
Pre-Algebra
Integers & Absolute Values
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Polynomials & Factoring
Functions & Graphs
Systems of Equations
Trigonometry
Trigonometric Functions
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Right Triangle Trigonometry
Unit Circle
Graphing Trigonometric Functions
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$-(-1)+2$$
Evaluate
$3$
Solution Steps
The opposite of $-1$ is $1$.
$$1+2$$
Add $1$ and $2$ to get $3$.
$$3$$
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Factor
$3$
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