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If 3 times a number minus 2 equals 13, what is the number? a. 4 b. 6 c. 5 d. 2
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If 3 times a number minus 2 equals 13, what is the number?

a. 4
b. 6
c. 5
d. 2

User Tomasz Jakub Rup
by
8.3k points

1 Answer

7 votes
We set up an equation: 3*? -2= 13
⇒ 3*?= 13+2 (inverse operation)
⇒ 3*?= 15
⇒ ?= 15/3 (inverse operation)
⇒ ?= 5

The correct answer is c. 5.
User CMedina
by
8.2k points
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