To determine if x=-3 is a solution to the equation -3x^2 = -27, we substitute -3 for x in the equation and check if it satisfies the equation:
-3(-3)^2 = -3(9) = -27
The equation is indeed satisfied when x = -3, since both sides of the equation yield -27. Therefore, x=-3 is a solution to the equation.
Is x=-3 a solution to the equation-3x^2=-27?
3 answers
Is (-4, 10) a solution to the equation 10-5x=y?
To determine if (-4, 10) is a solution to the equation 10-5x=y, we substitute -4 for x and 10 for y in the equation and check if it is satisfied:
10 - 5(-4) = 10 + 20 = 30
The left side of the equation is 30, but the right side is 10. Therefore, (-4, 10) is not a solution to the equation 10-5x=y.
10 - 5(-4) = 10 + 20 = 30
The left side of the equation is 30, but the right side is 10. Therefore, (-4, 10) is not a solution to the equation 10-5x=y.