Evaluate: 3x + 2y - 5, when x = 1, y = -10
Evaluate 3m - 5 if m = -6.
What is the value of 12a - 6b when a = 5 and b = -4?
What is the value of 4x - 3y when x = -2 and y = -1?
Evaluate (3ab - 12)/2, when a = -1 and b = 4