SOLUTION: 13x+7(-3x-1)=-63 what does x equal?

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Question 511471: 13x+7(-3x-1)=-63 what does x equal?
Found 2 solutions by MathLover1, oberobic:
Answer by MathLover1(20849) About Me  (Show Source):
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
13x +7(-3x-1) = -63
13x -21x -7 = -63
-8x = -56
x = 7
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Check the answer to be sure it is correct.
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13(7) + 7(-(3*7) -1) = ?
91 + 7(-22) = ?
91 - 154 = -63
Correct.
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Answer: x=7
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Done.