shippy2003 shippy2003

01-12-2020
Mathematics

contestada

10x + 4y = 20
13x - 4y = -66
If x = -2, what is the value of y?

Respuesta :

jovemarlie07 jovemarlie07

01-12-2020

Answer:

y = 10

Step-by-step explanation:

If x = -2

10x + 4y = 20

10(-2) + 4y=20

-20+4y=20

4y= 20+20

4y=40

y=10

If x=2 and y=10

13x - 4y = -66

13(-2) - 4(10) =-66

-26 -(-40) = 66 so it all checks out!!

Answer Link

Otras preguntas

Na + Br2 --> NaBr Calculate how many grams of NaBr may be produced from 5.00 grams of solid sodium metal when combined with unlimited Bromine gas.

What is the greatest common factor of 30 y 8 +10 y 4 ? 10y^8 20y^2 y^2 10y^4

Find the area of the circle. Look at the picture I’ll give you best brainliest!

An object accelerates from rest at a constant rate covering a distance of 18 meters in 3 seconds. What is its rate of acceleration? Put your answer in this form

what is the value of X?

At the market price of a bag of Asian pears is $24 but today 20% off what is the sale price after the discount

On a number line, show all values of x that have the absolute value greater than 2.

What is an equation of the line that passes through the point (-4,-6) & is parallel to the line 3x-y =6

The sum of 20 and Hectors height is 43

I have an assignment and I am having trouble with it. Can someone please help ASAP??? 1. You are a member of your school's robotics team and are in charge of pr