To solve this system of equations by elimination what operation would we use to eliminate the x variable and find the value of y -6x-4y=2-4x-7y=2

Option A is correct.

Step-by-step explanation:

We have to eliminate x from the given system of equations by solving

-6x -4y=2

-4x-7y=2

We can do this by subtracting 3 times the second equation from 2 times the first equation we get

-12x -8y = 2

12x +21y =- 2

Sign of second equation changed because it is getting  subtracted

Since, we got same quantity of x with opposite signs

Hence, it will get cancelled and so eliminated.

Therefore, Option A is correct.

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more