7x=20-x, x=-5÷2, 5÷2, 3÷2
Answers
Answered by
3
Answer:
hope it helps you
Attachments:
Answered by
1
Step-by-step explanation:
if a work can be done in 36 hours., if it is done 10 times faster for 30 minutes than how much time will be needed
who give me answer I will mark him as brainliest
Similar questions