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Basic Math
Arithmetic
Fractions & Decimals
Ratios & Proportions
Percentages
Basic Number Theory
Pre-Algebra
Integers & Absolute Values
Factors & Multiples
Prime Factorization
Basic Equations & Inequalities
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Algebra
Linear Equations & Inequalities
Quadratic Equations
Polynomials & Factoring
Functions & Graphs
Systems of Equations
Trigonometry
Trigonometric Functions
Trigonometric Identities & Equations
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
$$2x-9y-5x-7y$$
Evaluate
$-3x-16y$
Solution Steps
Combine $2x$ and $-5x$ to get $-3x$.
$$-3x-9y-7y$$
Combine $-9y$ and $-7y$ to get $-16y$.
$$-3x-16y$$
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Differentiate w.r.t. x
$-3$
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