SOLUTION: I'm having problems understanding this equation. -4x+9x=-30

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Question 417399: I'm having problems understanding this equation. -4x+9x=-30
Answer by htmentor(1343) About Me  (Show Source):
You can put this solution on YOUR website!
You need to collect terms and solve for x.
-4x%2B9x=-30
5x=-30
Divide both sides by 5:
x=-6
To check, substitute the value for x in the original equation:
(-4)(-6) + (9)(-6) = 24 - 54 = -30