69.4k views
1 vote
To solve 2x+9=21, what is the first step?

User Chindraba
by
8.2k points

2 Answers

7 votes

Answer:

That would be to collect like terms

Explanation:

Further explanation


2x+9=21\\\\Collect\: like\: terms\\2x = 21-9\\\\Simplify\\2x = 12\\\\Divide\:both\:sides\:of\:the\:equation\:by\:2\\(2x)/(2) = (12)/(2) \\Simplify\\\\x =6

User Zaheer Ahmed
by
7.7k points
4 votes

Answer:

The first step is to subtract 9 from each side

Explanation:

2x+9=21

The first step is to subtract 9 from each side

2x+9-9 = 21-9

2x = 12

Then divide by 2 on each side

2x/2 = 12/2

x = 6

User Chabir
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories