reyesbreanna14 reyesbreanna14

20-03-2021
Mathematics

contestada

what is the solution to the system of equations x-y=5 and 3x+7y=-5

Respuesta :

20-03-2021

Answer:

Step-by-step explanation:

3(x-y)-3x-7y=3(5)-(-5)

3x-3y-3x-7y=15+5

-10y=20

y=-2, since x-y=5

x-(-2)=5

x+2=5

x=3

So the solution is the point (3,-2)

Answer Link

Otras preguntas

Write 2050000 in scientific notation( with exponents)

In the book walk two moons where did fire come from

Why did the American officers tell the volunteers not to fire "until you see the whites of their eyes"?

Which are Greek gods that are correctly paired with their roles? Choose all answers that are correct. A. Aphrodite: goddess of beauty and love B. Pericles: god

what was Calpurnia's fault in to kill a mockingbird

Which statements describe factors that led to the decline and defeat of the Aztec Empire? Choose all answers that are correct. A. The Aztecs had never seen stee

what part of a cell is responsible for breaking down organic molecules? What part of a cell digests foreign substances or worn parts?

what was the job of a Yeoman in the middle ages in england

A line passes through points (6,3), (8,4), and (n,-2). How do I find the value?

Why are we dependant on photosynthesis