Question

Evaluate each expression when s=9 and t=12 1. 3(3t + s) 2. 2s - t

Answer 1

1.) 3 (3t + s)

distribute

9t + 3s

plug in the variables

9 ( 12 ) + 3 ( 9 )

108 + 27

135

2.) 2s - t

plug in the variables

2 ( 9 ) - 12

18 - 12

6

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