Facts about Substitution

Question

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• If two amounts are
===—
Answer
,, you can substitute one for the other.
• To solve a system of equations, you can replace a Answer
with an equal value or expression.
1-----.
• To check a solution, you can
/ Answer
the solutions into the equations and verify that both equations are
true.
• Substitution is the best method to use when one variable is already Answer ;
or when one variable can be
easily isolated.
isolated
# equal
substitute
:: variable

Answer 1

Here are the completed facts about substitution using the words you've provided:

1. If two amounts are equal, you can substitute one for the other.
2. To solve a system of equations, you can replace a variable with an equal value or expression.
3. To check a solution, you can substitute the solutions into the equations and verify that both equations are true.
4. Substitution is the best method to use when one variable is already isolated or when one variable can be easily isolated.

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