luluyounan luluyounan

12-03-2021
Mathematics

contestada

I am in a timed test please help!

3x + 12 = 21

Respuesta :

promisechenda promisechenda

12-03-2021

Answer:

x=3.

Step-by-step explanation:

3x+12=21.

3x=21-12.

3x=9.

x=3.

Answer Link

wackloser wackloser

12-03-2021

Answer:

x = 3

Step-by-step explanation:

3x + 12 = 21

- 12 -12

---------------------

3x = 9

divide by 3 on both sides to isolate

x = 3

Answer Link

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