Evaluate -6x + y – 7 when x = -3 and y = -3.
Note
Substitute the given values carefully: -6(-3) + 1(-3) - 7 = 18 - 3 - 7 = 8. A common mistake is to ignore the sign of y or the sign of the coefficient.
Evaluate -6x + y – 7 when x = -3 and y = -3.
Substitute the given values carefully: -6(-3) + 1(-3) - 7 = 18 - 3 - 7 = 8. A common mistake is to ignore the sign of y or the sign of the coefficient.