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  • Created by: Afeez_A
  • Created on: 16-11-16 13:22

An expression is a sum that does not have an equals sign. Equation: 3a - 1 (http://equation-chef.files.bbci.co.uk/content/77c1901f791ecbe07a18d27158da2877/18) is an expression, as is Equation: 4 + 2t - 3x (http://equation-chef.files.bbci.co.uk/content/72e98f7b29015d370bf1fbd8b3b2fce5/18).

An equation is an expression which is equal to a number or another expression, for example, Equation: 3x + 5 = 11 (http://equation-chef.files.bbci.co.uk/content/3d2d25185106d95d87cef15378590023/18). Equations can be solved, but only specific answers will work. This means equations are not always true. In the example above, Equation: 3x + 5 = 11 (http://equation-chef.files.bbci.co.uk/content/3d2d25185106d95d87cef15378590023/18), the only correct solution for Equation: x (http://equation-chef.files.bbci.co.uk/content/9dd4e461268c8034f5c8564e155c67a6/18) is 2.

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