Question

Simplify 6 - 4[x + 1 - (y + 3)] + 5y.

-4 + 2x + 3y
8 + 2x + 3y
14 - 4x + 9y
22 - 4x + 9y

Answer 1

14 - 4x + 9y

Explanation:

6 - 4(x + 1 - (y + 3)) + 5y

x + 1 - y - 3

6 - 4(x + 1 - y - 3) + 5y

-3 + 1 = -2

6 - 4(x - 2 - y) + 5y

4 * x = 4x

-4 * -2 = 8

-4 * -y = -4y

6 - 4x - 8 - 4y + 5y

6 + 8 = 14

4y + 5y = 9y

14 - 4x + 9y