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How many is this 2( 9 - 7r ) + 8r
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23 votes
How many is this

2( 9 - 7r ) + 8r

User Relliv
by
3.3k points

2 Answers

7 votes

solving steps:

2( 9 - 7r ) + 8r

2(9) - 2(7r) + 8r

18 - 14r + 8r

18 - 6r

User Patrick Kunka
by
3.1k points
4 votes

Answer:

18 - 6r

Explanation:

2(9 - 7r) + 8r

Expand the brackets:

⇒ 2 · 9 - 2 · 7r + 8r

⇒ 18 - 14r + 8r

Combine like terms:

⇒ 18 - 6r

User Supreet Sethi
by
3.3k points
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