Given y = 2-x, find the value of 4x + 4y-3

Given y = 2-x, find the value of 4x + 4y-3

From y = 2-x, we get x + y = 2, and substitute x + y = 2, the original formula = 4 (x + y) - 3 = 4 × 2-3 = 5