What is the solution of the system use elimination 3x plus 9y equals 33 -10x-6y equals -14?

Answer 1

2(3x+9y = 33)

3(-10x-6y = -14)

Multiply all terms in the first by 2 and in the second equation by 3:

6x+18y = 66

-30x-18y = -42

Add both equations together in order to eliminate y:

-24x = 24

Divide both sides by -24 to find the value of x:

x = -1

Substitute the value of x into the original equations to find the value of y:

Therefore: x = -1 and y = 4