gina0yvsalinner gina0yvsalinner

04-01-2017
Mathematics

contestada

The difference when 7 less than a number is subtracted from twice the number is 12. what is the number?

Respuesta :

04-01-2017

It is 5......2x-(x-7)=12 proof: 2*5-(5-7)=12
2x-x+7=12 10-(-2)=12
x=12-7 10+2=12
x=5 12=12

Answer Link

Otras preguntas

Which sentence correctly forms the plural of the letter R? A. Three R's make up her initials.

The copper wire and bulb is connected in a series with 220 V electric supply. Why only an electric bulb glows where as the copper wire remains the same.Give REA

Which sentence correctly forms the plural of the letter R? A. Three R's make up her initials.

What is one fact about xuchal

Ratio equal to the ratio given 12:7

The data represent the ages of people working at a store. 19, 27, 20, 26, 20, 24, 32, 23, 20, 19, 21 What is the first quartile of these ages?

In the top row of an chessboard, Tom writes the values 1, 2, 4, 8, 16, 32, 64, 128. In the leftmost column, Tom writes the values 1, 3, 9, 27, 81, 243, 729, 2

What's the answer to this problem?

What type of reaction occurs when you strike a match?

Alison wants to find out how much time people spend reading books. She is going to use a questionnaire. Design a suitable question for Alison to use in her ques