SOLUTION: –3(10x – 3) + 10(3x – 3) = x – 7

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Question 42523: –3(10x – 3) + 10(3x – 3) = x – 7
Answer by nik_consult(24) About Me  (Show Source):
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–3(10x – 3) + 10(3x – 3) = x – 7
-30x + 9 + 30x - 30 = x – 7
-21 = x – 7
-21 + 7 = x
x = -14