An equation is a situation in which two or more parts have to be considered together so that the whole situation can be understood or explained. The equation is simple: research breeds new products New plans have taken chance out of the equation. see also equate. Statement of equality between two expressions consisting of variables and/or numbers. In essence, equations are questions, and the development of mathematics has been driven by attempts to find answers to those questions in a systematic way. Equations vary in complexity from simple algebraic equations (involving only addition or multiplication) to differential equations, exponential equations (involving exponential expressions), and integral equations. They are used to express many of the laws of physics. See also system of equations. algebraic equation chemical equation continuity equation difference equation differential equation Drake equation Green Bank equation integral equation Laplace's equation motion equation of ordinary differential equation partial differential equation quadratic equation Schrödinger equation state equation of Maxwell's equations system of equations simultaneous equations
A quantity to be applied in computing the mean place or other element of a celestial body; that is, any one of the several quantities to be added to, or taken from, its position as calculated on the hypothesis of a mean uniform motion, in order to find its true position as resulting from its actual and unequal motion
An equation is a math sentence that says that 2 things are equal An equation always has an equal (=) sign The thing or things that are on the left side of the equal sign are equal to the things on the right side of the equal sign Here are a few equations: X = Y + 5 A = B - 4 Z = 3 A C = D (circumference of a circle) A = W H (area of a rectangle with width W and height H) E = M C2 (Einstein's famous equation) In the first equation, if Y is 2, then X must be 2 + 5 or 7 to make the equation true In the second equation, if B is 10, then A must be 6 to make the equation true In the third equation, the number next to the letter means multiply the value of the variable represented by "A" by 3 So if A is 4, then Z must be 12 to make the third equation true Now here's a problem for you: In the first equation, if Y were 10, what would X be?
An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; from which one is to determine a particular quantity
a mathematical expression containing an equals sign The expression on the left hand side of the equals sign must have the same value as the expression on the right hand side Equations often contain algebra