srirahayu111020 srirahayu111020

01-12-2020
Mathematics

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Please help number n yang memenuhi (12 + 8)+ (-3n) = -22 adalah?
A. -16
B. -14
C.14
D.16

Respuesta :

c455iarc0u5in5 c455iarc0u5in5

01-12-2020

Answer:

C. 14

Step-by-step explanation:

remove the brackets

(12+8) + (-3n) = -22

20 - 3n = -22

subtract 20 from -22

-3n = -22 -20

-3n = -42

divide each side by -3

-3n ÷ -3 = -42 ÷ 3

n = 14

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