Substitution and Order of Operations

Replace variable (letter/symbol) with number

Simplify by following order of operations

Replace variable (letter/symbol) with number

Simplify by following Order of Operations

Solve the equation for unknown variable

1) distribute - Parenthesis

2) combine like terms on 1 side of the equation

move all VARIABLE terms to the same side of equation by add or subtract

UNDO add/subtract to variable

UNDO multiply/divide to variable