Determine whether the ordered pair (12, -5) is a solution to the equation 3x-3y=21

Hi there!

No, it is not the solution to the equation 3x - 3y = 21

They give us (12, -5). Twelve represents x and -5 represents y.

So, all we have to do is plug them in.

3(12) - 3(-5) = 21
36 + 15 = 21
51 = 21

See... they are not equal because (12, -5) is not the solution of the equation.

Best of luck with your studies!

Please let me know if you have additional questions about my answer.

You need to include the original coordinates of the triangle to answer this. and how much does it translate (move left right up down)