rikki150 rikki150

02-11-2020
Mathematics

contestada

1. A number subtracted from 8 is the same as the sum of 3 times a number and 4. What is
the number?

Respuesta :

majitohunt majitohunt

04-11-2020

Answer:

Number = -1

Step-by-step explanation:

8 - x = 3(x + 4)

8 - x = 3x + 12 ( /+x / -12 on both sides)

8 - 12 - x + x = 3x + x + 12 - 12

-4 = 4x (/ divide by 4)

-4/4 = 4x/4

-1 = x

Answer Link

Otras preguntas

How do I graph f(x)= -cos(x-pi)?

E = mv^2 Work out the value of E when m = 3 and v = 10

A basketball rolls of a 0.70 m high desk and strikes the floor 0.25 m away from the base of the desk? How fast was the ball rolling?

while your finger is still pushing the coin, there are four forces acting on the coin: what are they?

How do I graph f(x)= -cos(x-pi)?

Mr Jones has 20,000 to invest. He invests part at 6% and part at 7%, if hr earns 1,280 in interest after 1 year, how much did he invest at each rate.

Find the value of 2 in this equation. 33- (8t) = 15

express each number in fraction form before finding the inverse:7,10,1 3/4,

Ho long does it take for the Moon to show all its faces? Thank you❤

There are 21 males in the algebra 1 class. If 75% is female, how many students are there in the class?