Answer:
x =-4
Step-by-step explanation:
4x+9 = -2x-15
Add 2x to each side
4x+2x +9 = -2x+2x-15
6x+9 = -15
Subtract 9 from each side
6x +9-9=-15-9
6x = -24
Divide each side by 6
6x/6 = -24/6
x = -4
The answer is D because when you put the missing value which is x you replace it to 10 and then you solve it I hope this helps
This document has the answer
145 degrees. Angle 145 and and E are the same
defective : working = 1/15 ( x20 ) 20/300
so the answer is 20 light bulbs
