ariana524 ariana524

19-01-2021
Mathematics

contestada

— 4х + 7y = 20
у = 3х + 15

Respuesta :

Аноним Аноним

19-01-2021

Answer:

x=-5

Step-by-step explanation:

[tex]-4x+7(3x+15)=20\\ -4x+21x+105=20\\ 17x+105=20\\ 17x=20-105\\ 17x=-85\\ x=-5[/tex]

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

If the average price of four pairs of shoes is $50, and three of those pairs of shoes are priced at $35, $40 and $55, what is the price of the fourth pair of sh

A network of interlacing nerve fibers in the peripheral nervous system (PNS):

02.05 thesis statements

A presidential _________ is usually expressed as the percentage of the american public who say the president is doing a good job.

Luke grew up by the beach and only wears sandals. because of this, it is likely luke considers sandals to be the most typical type of “shoe.” for luke, sandals

Mary is making Magic Marshmellow cake . The recipe calls for 3/4 cup of milk and 2 eggs per serving. The wants to make enough cake for 20 people . How much milk

What would most likely be the purpose of a myth? A. To inspire rebellion among the masses B. To make children disobey their parents C. To show why hone

Clean & Green laundry detergent removes stains better than other leading laundry detergents. But Clean & Green is safe for the environment, too. So buy

In rectangle JKLM, angle JML is 3x - 15. Find the value of x.

A patient is visiting the physician to determine what type of allergy is causing a rash. what type of testing does the nurse anticipate the physician will sched