Question

Simplify the expression −3z−(−z−2)

Answer 1

-2z + 2

Explanation:

`(-)(-)=(+)\\\\-3z-(-z-2)=-3z+z+2\qquad\text{combine like terms}\\\\=(-3z+z)+2=-2z+2`

Answer 2

Answer: -2z+2

Explanation:

Simplify brackets

-3z + z + 2

Collect like terms

(-3z + z) + 2

Simplify

-2z + 2