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Evaluate the expression 3x + 21 for x=3

Evaluate the expression 3x + 21 for x=3
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4 votes
Evaluate the expression 3x + 21 for x=3

asked
User JayneT
by
7.8k points

1 Answer

1 vote

Answer:

30

Explanation:

Problem = 3x + 21 for x=3

3(3) +21 --- subsitute the three for the x

9 + 21 ---- multiply the 3s together

30 ----- add

answered
User Ericson
by
8.5k points
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