Register
If 3y+5=7x, then 21y-49x=?
174k views
3 votes
If 3y+5=7x, then 21y-49x=?

User Winqoo
by
7.3k points

1 Answer

2 votes
3y+5=7x

3y=7x-5

y=(7x-5)/3

...

21y-49x becomes

7(7x-5)-49x

49x-35-49x

-35
User Ashwini Khare
by
6.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.2m questions

9.6m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
Please solve the following equation. x-6x=56
whats the most accurate estimation of 65+77
Find the additive inverse of 18/23
What is 25% of 500.00
Link Copied!