SOLUTION: Directions: Define a variable and write an equation. Then solve. If twice a number is subtracted from 8, the difference is 12. What is the number?

SOLUTION: Directions: Define a variable and write an equation. Then solve. If twice a number is subtracted from 8, the difference is 12. What is the number?

Algebra.Com

Question 262632: Directions:
Define a variable and write an equation. Then solve.
If twice a number is subtracted from 8, the difference is 12. What is the number?
Answer by shiela mae(5) (Show Source): You can put this solution on YOUR website!
use the equation
2x-8=12
2x=12+8
2x=20
2x/2=20/2
x=10
The number is 10
RELATED QUESTIONS
define a variable, write an equation, and solve to find each number. Eighteen less... (answered by rfer)

Define a variable and write an equation. Then solve the following problem. A number is 6... (answered by rfer)

the length of a rectangle is twice the width. Find the width if the perimeter is 60... (answered by checkley77)

Write as an equation in a single variable. Identify the variable The difference when... (answered by nerdybill)

How do you define a variable? For example: Define a variable and write an algebraic... (answered by Earlsdon)

Hi, I need help with this problem, I have tried everything. Here it is: The difference... (answered by jim_thompson5910)

Define a variable, write an inequality, and solve each problem. One forth of a number (answered by Boreal)

elaine is 8 years younger than her brother tyler. the sum of their ages is 34. define a... (answered by josgarithmetic)

Define a variable and write an inequality for each problem. Then solve. One half of a... (answered by rfer,stanbon)