446,840 views
3 votes
3 votes
Twice a number plus 6 times the
number is 72. Find the number.

User Samiksha
by
2.4k points

2 Answers

5 votes
5 votes

Answer:

The number is 9

Step-by-step explanation:

So, the first thing you have to do is write out the problem. 2x+6x=72

Then, you combine like terms. 8x=72

Then, you have to isolate the variable, so you divide by 8 on both sides. 8x/8=72/8

Then, you have x=9, which is your answer.

User Sander Steffann
by
2.6k points
22 votes
22 votes

Answer:

The number is 9.

Step-by-step explanation:

Framing the expression and solving:

Let the number be 'x'.

Twice a number = 2x

6 times the number = 6 *x = 6x

2x + 6x = 72

Combine the like terms,

8x = 72

Divide both sides by 8,

x = 72 ÷ 8

x = 9

User Parvez Belim
by
2.9k points