Substitution Method
- Solve one of the equations for the variable that has a 1 or -1 as a coefficient so you don’t get fractions.
- Substitute the algebraic expression into the other equation for its variable.
- Solve the equation for the like variable.
- Substitute the value found in step 3 into the algebraic expression to find the value of the other variable.
- When solving the equation in step 3 – if the variable terms cancel out on both sides:
- The answer is IMS, if a true statement remains.
- The answer is NO SOLUTION, if a false statement remains.
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