Question

Evaluate and simplify

1. -(5x -4)

2. 10 - 2(4x - 6y)

4. 1/2 (-6y + 9z)

5. 2(3a + 9b) - 4(2a - 2)

Answer 1

1. -5x +4

Explanation:

1. you have to distribute the negative sign to the numbers in the parenthesis. So -(5x)= -5x, and -(-4)= 4. Sk your left with -5x + 4 which you cannot simply bcs those are not equal values, so the answer is -5x + 4.

Answer 2

1. -5x +20
2. -8x +12y+10
4. -3y + 9z/2
5. -2a +18b+8