alleryStart learning →In the substitution method, the first move is to solve one of the equations for:
AEither volunteer
BEither vineyard
CEither variable
DEither violinist
Answer & Solution
Correct answer: C. Either variable
1. Substitution needs an expression to put into the other equation.
2. That expression comes from rearranging one of the two equations.
3. Solve one of the equations for either variable.
4. Then substitute that expression into the other equation.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 5 'Systems of Linear Equations', sections 5.1-5.3_
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