Now go back and check..There is a number such that three times the number minus 6 is equal to 45. Find the number.
Let n = the number I need to find
Set up:
3n - 6 = 45
3n = 45 + 6
3n = 51
n = 51/3
n = 17
I say the number is 17.
i would do it very differently. First off you should know that 51 - 6 is 45, so 3n=51. Now since I you are much better with multiplication then division ( I bet that you NEVER studied (or seen) division tables but you have studied multiplication tables) you should not turn a multiplication problem into a division problem!! Regardless of what you are taught. 3*17 = 51, so n=17.There is a number such that three times the number minus 6 is equal to 45. Find the number.
Let n = the number I need to find
Set up:
3n - 6 = 45
3n = 45 + 6
3n = 51
n = 51/3
n = 17
I say the number is 17.
Got it.i would do it very differently. First off you should know that 51 - 6 is 45, so 3n=51. Now since I you are much better with multiplication then division ( I bet that you NEVER studied (or seen) division tables but you have studied multiplication tables) you should not turn a multiplication problem into a division problem!! Regardless of what you are taught. 3*17 = 51, so n=17.