zak2DarieW7ald zak2DarieW7ald

10-02-2016
Mathematics

contestada

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

Respuesta :

Billymkhoi Billymkhoi

10-02-2016

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.

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