11014515 11014515

24-11-2022
Mathematics

contestada

If $2x-y=7,$ what is the value of $7-8x+4y$?

Respuesta :

Medunno13 Medunno13

24-11-2022

Answer:

[tex]7-8x+4y=-21[/tex]

Step-by-step explanation:

[tex]2x-y=7 \implies 8x-4y=28 \\ \\ \implies 7-8x+4y=7-28=-21[/tex]

Answer Link

Otras preguntas

Write a two- paragraph expository essay for either the United States or the Soviet Union supporting its involvement in Asia.

Why do you think Africans weren’t interested in buying European products?

Which statement is an opinion rather than a fact? (1) Mansa Musa made a pilgrimage to Mecca. (2) Mali would have flourished without Mansa Musa’s influence.

Is it possible to tell if an acid or base is strong or weak just by looking at its chemical formula?

Chandraguptra Mayura succeeded in uniting the Indian subcontinent through

Which of the following describes why germany embraced a totalitarian regime in the 1930s? germand accepted the provisions of the treaty of versailles or becaus

2.In which sentence does the verb agree with the subject? a. Your socks and shirt is in the laundry room. b. Each child and adult needs a ticket for the carouse

Which verb agrees in number with its subject? That kind of tropical plant............... in this climate. a. Doesn't thrive b. Haven't thrived c. Aren't thrivin

3^1/2 × a^2/3 × b^3/4 write as a single radical

Q(t)=Qoe^-kt May be used to model radioactive decay. Q representing the quantity remaining after t years, k is the decay constant 0.00011. what is the half-life