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

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

english puritans subscribed to the doctrine of

Which equation is used to calculate electric power

HELP NEEDED URGENTWhich graph represents the solutions to the inequality |2x − 6| < 4? number line with a closed circle on 1, shading to the left and a clo

What are the real zeros of this function f(x)=X^3+4x^2+x-6

You are serving bratwurst and hamburgers at your annual picnic . You want at least three bratwursts or hamburgers for each of your 50 guests. Bratwursts cost $1

Where can the topic sentence of a paragraph be found? A. at the end B. at the beginning C. any of these answers D. in the middle 1 of 10

A 9 V battery sends a current of 0.5 A through a resistor. What is the value of the resistance?

Look at the map. Which number on the map shows Guam? 1 2 3 4

A satellite orbits the Earth. Which changes would decrease the force of Earth's gravity on the satellite? Check all that apply. A. Increase the velocity of t

Which of the following statements uses the strongest emotive language? A. What will happen if we don’t protect our rainforests? B. What is the current sta