Solve for x. 7(x - 3) + 3(4 - x) = -10 Simplify. [7m + 3n - 9 + 2m] + [n + 3 + m + 3n - 6] A spaceship traveled 81 billion miles. In scientific notation that is _____ miles.

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asked Apr 7, 2016 151k views

1 vote

Solve for x.

7(x - 3) + 3(4 - x) = -10

Simplify.
[7m + 3n - 9 + 2m] + [n + 3 + m + 3n - 6]

A spaceship traveled 81 billion miles. In scientific notation that is _____ miles.

Mathematics
high-school

George Valkov asked

by George Valkov

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1 Answer

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x=.25 or 1/4

10m+7n-12

8.1*10^10 miles

Evdokia answered Apr 11, 2016

by Evdokia

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