2 years ago

1. Mateo is going to solve the equation below.

2 answers:

7 0

Answer: B

Step-by-step explanation: The answer would be B because both the 8x and 22x are both negative so once you add those two together you would get -30x so that cancels out A and C. SO now you move onto 23 and 9 well both of those are positive so you would add those together and get 32 so that cancels out D and only answer left is B

Andru [333]2 years ago

5 0

B. -30x + 32 = 182

Por que:

-8x -22x + 23 + 9 = 182

- 30x + 32 = 182 ✔️

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$3.4\times10^{-20}+5.4\times10^{-19}+9\times10^{-20}=\underline{\ \ \ \ }\times10^{-19}\\\\=(0.34+5.40+0.90)\times10^{-19}=\boxed{6.64}\times10^{-19}$