08-06-2021
Mathematics

contestada

7x+40
5x+20
Find the value of x.

Respuesta :

akbusiness987 akbusiness987

08-06-2021

Answer:

x = - 10

Step-by-step explanation:

7x + 40 = 5x + 20

7x + 40 - 40 = 5x + 20 - 40

7x = 5x - 20

7x - 5x = 5x - 5x - 20

2x = - 20

2x ÷ 2 = - 20 ÷ 2

x = - 10

Answer Link

Otras preguntas

How can carbon cycle very quickly from the atmosphere and then back into the atmosphere?

What influences hyphae growth? A. Animals B. Nothing. Hyphae grow wherever they want. C. Other fungi growth D. Stimuli (ex: food or water)

A battery does work on electric charges to bring them to a position of higher electric potential energy so that they can flow through a circuit to a lower poten

You borrow $199,000 to buy a house. the mortgage rate is 5.5 percent, compounded monthly. the loan period is 30 years, and payments are made monthly. if you pay

A Ping-Pong ball has a mass of 2.3 g and a terminal speed of 9.4 m/s. The drag force is of the form bv^2 What is the value of b?

Is smith v. mkt corp. a criminal case or a civil case? how can you tell?

How does the number of electrons change as you move from left to right across a period?

In an oxygen element, each oxygen atom contains eight electrons in its valence shell. the atoms will be

Write a rule for the linear function in the table. x fx ----------- -4 16 0 0 4 -16 8 -32 A. f(x) = –4x B. f(x) = 4x C. f(x) =

If b + 7 is an odd integer, which of the following could be the value of B? Answer choices -8, -3, 1 and 5