19x-15 = 15x -7
4x = 8
x =2
19(2) -15 = 23
15(2) -7 = 23
Answer:
every 10 mL of solution equals 5 cells
Step-by-step explanation:
I'm not sure if this equation is right but I think it's either 200÷40, 205÷50, or 205÷40 I hope this is kinda helpful.
Answer:
3.4
Step-by-step explanation:
Answer:
Step-by-step explanation: