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 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
 2-D Shapes Areas Pythagorean Theorem Distances
 Graphs Definition of slope Positive or negative slope Determine slope of a line Ecuación de una recta Equation of a line (from graph) Quadratic function Posición relativa de dos rectas Asymptotes Limits Distancias Continuity and discontinuities
 Sine Cosine Tangent Cosecant Secant Cotangent Trigonometric identities Law of cosines Law of sines
 Ecuación de una recta Posición relativa de dos rectas Distancias Angles in space Inner product

 Algebra Solve equations II An equation is a mathematical statement that has an expression on the left side of the equals sign (=) with the same value as the expression on the right side. One of the terms in an equation may not be know and needs to be determined. Often this unknown term is represented by a letter such as "x". (e.g. 5 + x = - 2) Solving an equation means manipulating the expressions and finding the value of the unknown variables. In order to solve for the unknown variable, you must isolate the variable To keep an equation equal, we must do exactly the same thing to each side of the equation. If we add (or subtract) a quantity from one side, we must add (or subtract) that same quantity from the other side. Solve for x: $\fs2x+5=12\;\;\Rightarrow\;\;x=12-5\;\;\;\Rightarrow\;\;x=7$ Solve for x: $\fs22x=-11\;\;\;\;\Rightarrow\;\;x=-11/2$ Solve for x: 1x = 1