Question

Simplify each of the following expressions: 3(x + 2) + 4(x − 2) 2(x + y) − 3(x + y) −(y + 8) + 4(6 − y) 2(4x + 3) − 3(x + 1)

Answer 1

7x-2, -x-6y+16, 5x-3

Explanation:

I'm guessing the three expressions are:

1. 3(x+2) + 4(x-2)

2. 2(x+y) - 3(x+y) - (y+8) + 4(6-y)

3. 2(4x+3) - 3(x+1)

... 1. 3(x+2) + 4(x-2)

= 3x + 6 + 4x - 8

= 7x - 2

... 2. 2(x+y) - 3(x+y) - (y+8) + 4(6-y)

= 2x + 2y - 3x - 3y - y - 8 + 24 - 4y

= -x - 6y + 16

... 3. 2(4x+3) - 3(x+1)

= 8x + 6 - 3x - 3

= 5x - 3