SOLUTION: Find the difference. (2y - 7) - (-8y - 15)

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Question 1091430: Find the difference.
(2y - 7) - (-8y - 15)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28+2y+-+7+%29+-%28+-8y+-+15+%29+
+2y+-+7+-%28-8y%29+-%28-15%29+
+2y+-+7+%2B+8y+%2B+15+
+10y+%2B+8+
---------------------------
check:
Suppose +y+=+5+
+%28+2%2A5+-+7+%29+-%28+-8%2A5+-+15+%29+
+%28+10+-+7+%29+-%28+-40+-+15+%29+
+3+-+%28+-55+%29+
+3+%2B+55+=+58+
and
+10y+%2B+8+=+10%2A5+%2B+8+
+50+%2B+8+=+58+
OK