Answer:
5z+1
Step-by-step explanation:
3z-4+2z+5
Group like terms
3z+2z+5-4
Simplify
(3z-4)+(2z+5)
3z+2z-4+5
5z-4+5
2.50
Answer:23
3·2（3）+2+3
=3·6+2+3
=23
lines a and d are parallel and lines b and c are parallel
