Solving equations 2

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Across
  1. 4. used to apply operations in a given order to a value known as the input. The final value produced is known as the output.
  2. 6. a statement that the values of two mathematical expressions are equal (indicated by the sign =).
  3. 7. to find a solution
Down
  1. 1. a fact or a rule written with mathematical symbols. It usually connects two or more quantities with an equal sign
  2. 2. mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by a mathematical operator of addition, subtraction, multiplication, or division
  3. 3. relating to, resembling, or having a graph that is a line and especially a straight line
  4. 5. refers to the opposite of another operation.