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4 votes
Please show step by step how to do this (2-step) equation
3x + 6 = 21

User IGEL
by
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1 Answer

3 votes

Answer:

x = 5

Explanation:

3x + 6 = 21

3x = 21 - 6

3x/3 = 15/3

x = 5

User Charles L Wilcox
by
5.4k points