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Pre-Algebra
Variables and Expressions
Substitution Method — Definition & Examples

Practice problem

Substitution Method — Definition & Examples

By

Alex Federspiel

+3 contributors

Contributors

Alex Federspiel
Victor Wang
Liza Sulkin
Anusha Rahman

Evaluate $3x+9$ when $x=7$ .

Choose one answer

Option A: A

$46$

Option B: B

$36$

Option C: C

$33$

Option D: D

$30$

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