Answer:
-6
Step-by-step explanation:
Are you sure that z + 2+ z is correct? x and y do not appear here.
z + 2+ z simplifies to 2z + 2, and so, if z = -4, z + 2+ z has the value
2(-4) + 2, or -6.
Answer:
3x-x+2=4
Step-by-step explanation:
Answer:
No solution
Step-by-step explanation:
the two lines are parallel on the graph, they never intersect
Answer:
y = 7°
Step-by-step explanation:
By interior angle sum theorem of a triangle.