johnsonnoah822 johnsonnoah822

02-11-2020
Mathematics

contestada

Solve the equation: 3(x + 5) = x + 21
A. 3
B. 6
C. -13
D. 8

Respuesta :

juleseatsjewels juleseatsjewels

02-11-2020

Answer:

A

Step-by-step explanation:

1. Plug in the numbers: 3 (3+5) = 3+21

2. Use PEMDAS (Order of Operations) to solve:

3 (8) = 24

24 = 24.

Answer Link

ib2007ib2007 ib2007ib2007

02-11-2020

Answer:

A. 3

Step-by-step explanation:

3(x+5)=x+21

3x+15=x+21

3x=x+6

2x=6

x=3

Answer Link

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