to check whether (0,-5) is a solution of 3x = 3y - 15 we need to plug the given variables in the equation.
so ( x = 0 ) and ( y = -5 )
3(0) = 3( -5 ) - 15
0 = -15 - 15
0 = -30
we know that 0 is not equal to -30 so
we can say given variables (0, -5) are not the solution for 3x = 3y - 15