Solve the system of linear equations by ELIMINATION. Check your solution 6x−2y=1010x−y=−2

The solution is (-1,-8)

Step-by-step explanation:

Equation 1 :6x−2y=10

Equation 2 : 10x−y=−2

Multiply equation 1 by 1 and Equation 2 by 2

So, Equation 1 will be : 6x-2y=10

So, Equation 2 will be : 20x-2y=-4

Subtract 1 from 2

So, 20x-2y-6x+2y=-4-10

14x=-14

x=-1

Substitute the value of x in 1

So,6(-1)-2y=10

-6-2y=10

-16=2y

-8=y

Check solution:

Substitute the values in equation 1 :

6x−2y=10

6(-1)-2(-8)=10

-6+16=10

10=10

Hence Verified

So, The solution is (-1,-8)

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.