Question

Simplify the expression:
–
9–5z–5z+
–
10+
–
2+
–
9z

Answer 1

Combine like terms.

z-terms: -5z - 5z - 9z = -19z
constants: -9 - 10 - 2 = -21

So the expression simplifies to -19z - 21 (or -(19z + 21)).