mrminion21 mrminion21

12-12-2018
Mathematics

contestada

Simplify: (7+2a)·3–20 =

Respuesta :

charlief22 charlief22

12-12-2018

Greetings!

Answer:

6a + 1

Step-by-step explanation:

First, you need to multiply everything in the brackets by 3L

(7 + 2a) x 3 =

7 * 3 = 21

2a * 3 = 6a

21 + 6a

Now you can subtract the 20 from this:

6a + 21 - 20

Simplified down:

6a + 1

Hope this helps!

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