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Fractions & Decimals

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Basic Number Theory

Integers & Absolute Values

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Prime Factorization

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Coordinate Plane & Graphing

Linear Equations & Inequalities

Quadratic Equations

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Graphing Trigonometric Functions

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Thermochemistry

Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$12-4-7$$