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

It's good to be in positive energy balance when you're A. a fully grown adult in good health. B. trying to deal with stress. C. recovering from the flu. D. b

Solve for x (x + 10)(x + 10) = 0

What strategy is a student using when associating the word disposition with a picture of a model posing?

What is the composition, in atom percent, of an alloy that consists of 4.5 wt% Pb and 95.5 wt% Sn? The atomic weights for Pb and Sn are 207.19 g/mol

Please help me!! This question awards 100 points!!! I really don’t want to fail math!! I will also mark you brainliest!!!

Which line in this excerpt from The Great Gatsby by F. Scott Fitzgerald contains a simile? About half way between West Egg and New York the motor-road hastily

What is the area of MNP? 40 m2 60 m2 68 m2 127.5 m2

A taxi cab charges $1.75 for the flat fee and $0.25 for each time. Write an in equality to determine how many miles Eddie can travel if he has $15 to spend.

This painting of the Yosemite Valley in California, finished in 1865, reflects the romantic movement. How does this painting depict aspects of romanticism? Chec

Why are slow-twitch muscles more beneficial than fast-twitch muscles for cardiorespiratory fitness?