Register
How would you solve 3x-4=9x-21
134k views
5 votes
How would you solve 3x-4=9x-21

User Manoj Patil
by
9.3k points

2 Answers

2 votes
3x - 9x = -21 + 4
-6x = -17
x = -17/-6
x = 17/6
User Mangiucugna
by
8.1k points
1 vote
3x - 4 = 9x - 21

Subtract 9x from both sides.

3x - 9x - 4 = -21

Add 4 to both sides.

3x - 9x = -21 + 4

Simplify.

-6x = -17

Divide both sides by -6.

x = 17/6 AND 2 5/6

~Hope I helped!~
User Andy Braham
by
9.4k points
← Prev Question Next Question →

No related questions found

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

9.5m questions

12.2m answers

Other Questions

What is .725 as a fraction
Write words to match the expression. 24- ( 6+3)
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony
9/10 divided by (1/10 plus 2/5)
Link Copied!