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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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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.

User George Valkov
by
8.5k points

1 Answer

3 votes
x=.25 or 1/4

10m+7n-12

8.1*10^10 miles
User Evdokia
by
8.1k points
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