12-08-2017
Mathematics

contestada

Find the value of x (2x+7) and (7x)

Respuesta :

AshtheSlytherin AshtheSlytherin

12-08-2017

2x + 7 = 7x
-2x -2x

7 = 5x

x = 7/5

We can check this by plugging in the value in the place of x:

2(7/5) + 7

2.8 + 7 = 9.8

7/5(7) = 9.8

Since both our answers are equal, this means that the value is correct. X equals 7/5. Hope this helps! :)

~Ash

Answer Link

Otras preguntas

Which statement defines calorimetry? the conservation of energy a unit of energy that is used when calculating energy exchange a device that is used to measure

What do I add to 25/6 to make the whole number of 4?

Which of the following best describes the forces that generate solar power? Energy of the sun strikes photovoltaic cells producing a flow of electrons. Heat

Need help with these questions.

The acetylene tank contains 35.0 mol C2H2, and the oxygen tank contains 84.0 mol O2. How many moles of O2 are needed to react completely with 35.0 mol C2H2? __

When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must _____. multiply by 10^-3 multiply by 3 multiply

A book vendor is trying to sell his booking collection. One customer buys 1/4 of his books , another buys 1/3 of his books ,and a third buys 1/6 of his books. I

Cigarettes can contain how many chemicals

Help any one? Pls you’ve been so helpful pls don’t let it end

Given: △АВС, m∠ACB = 90° CD ⊥ AB , m∠ACD = 30°, AC = 8 cm Find: BD