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

A passenger walks toward the rear of a moving train. Describe her motion as seen from a reference point on the train. Then describe it from a reference point on

What are combinations of numbers and operations.

Do multiplication always make the number bigger

How do you use subsidize in a sentence

Thomas bought a desk with a retail sales price of $129 and paid $10.32 sales tax. What is the sales tax rate where Thomas bought the desk?

what was the effect when the english settlers were willing to fight for the land they wanted?

What's the difference between the axis and allies powers in WWII

in kilometers how much larger is the distance around the earth from east to west than the distance from north to south

What is the blind spot of the eye?explain it.

Rema is older than Ken. The difference if their ages is 12 and the sum if their ages is 50. Find the age if each.