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

How to find the inverse of the function f(x)=2x-3 ? Please

This song was popular with American troops during the Revolutionary War. Here is a part of its famous refrain: “Stuck a feather in his cap, and called it macar

The withdrawal of eleven Southern states from the Union in 1860 which precipitated the American Civil War 1860 Election Secession Populism Dawes Act

what is the square root of 141?

What do all members of a biological species have in common? A. They can interbreed and produce fertile offspring. B. They are members of the same population.

IDEAS FOR RECONSTRUCTION, explain why they are good ideas?

need help fast what are all the solution to this problem

Who was the oldest signatory of the Declaration of Independence?

What do all members of a biological species have in common? A. They can interbreed and produce fertile offspring. B. They are members of the same population.

what is database of computer ?