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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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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$13\div[(-2)+1]$$
Evaluate
$-13$
Solution Steps
Add $-2$ and $1$ to get $-1$.
$$\frac{13}{-1}$$
Fraction $\frac{13}{-1}$ can be rewritten as $-13$ by extracting the negative sign.
$$-13$$
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Factor
$-13$
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