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netineya [11]
3 years ago
6

-5+2(10b-2)=31 need help thanks!

Mathematics
2 answers:
Contact [7]3 years ago
8 0

Answer:

\Large \boxed{b=2}

Step-by-step explanation:

-5+2(10b-2)=31

Expand brackets.

-5+20b-4=31

-9+20b=31

Add 9 on both sides.

20b=40

Divide both sides by 20

b=2

kozerog [31]3 years ago
4 0

Answer:

<h2>b = 2</h2>

Step-by-step explanation:

-5+2(10b-2)=31

Multiply the terms in the bracket

That's

- 5 + 20b - 4 = 31

Group like terms

Send the constants to the right side of the equation

That's

20b = 31 + 4 + 5

Simplify

20b = 40

Divide both sides by 20

We have the final answer as

<h3>b = 2</h3>

Hope this helps you

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