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Basic Math
Arithmetic
Fractions & Decimals
Ratios & Proportions
Percentages
Basic Number Theory
Pre-Algebra
Integers & Absolute Values
Factors & Multiples
Prime Factorization
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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
Calculus
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$17+-21$$
Evaluate
$-4$
Solution Steps
Subtract $21$ from $17$ to get $-4$.
$$-4$$
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Factor
$-4$
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