SOLUTION: If I subtract 7 from a certain number and multiply the result by 3, my answer is 10 less than twice the certain number. Find the number.

SOLUTION: If I subtract 7 from a certain number and multiply the result by 3, my answer is 10 less than twice the certain number. Find the number.

Algebra.Com

Question 964381: If I subtract 7 from a certain number and multiply the result by 3, my answer is 10 less than twice the certain number. Find the number.
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
(X-7)*3=2X-10
3X-21=2X-10
3X-2X=-10+21
X=11 ANS.PROOF:
(11-7)*3=2*11-10
4*3=22-10
12=12
RELATED QUESTIONS
I add 7 to a number .i double the result. My Fi nal answer is 34 wat was m... (answered by josgarithmetic)

i subtracted 8 from a certain number. I then multiply the result by 3, the final answer... (answered by Fombitz)

When you multiply a certain number by 3 and then subtract 7/18, you get the same result... (answered by solver91311)

I subtract 13 from a certain number and then divided the result by 3.The result is the... (answered by ewatrrr)

HELP! so confused. If you multiply a certain number by 5, then subtract 3, you get 11... (answered by checkley79)

please help me with the follwing question,please can you help me work it out: If i... (answered by Fombitz)

Jane is thinking of a number between -10 and 10. If you multiply Jane�s number by -2,... (answered by KMST)

I add 5 to a certain number, and then divide by 6. Starting with the same number, I... (answered by josgarithmetic,macston)

Quote: "I am thinking of a number. I multiply it by 15 and subtract 280. I get the... (answered by vleith)