-7 -(+7)
= -7 -7
= -14
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7 plus 7 divided by 7 plus 7 times 7 minus 7 is equal to 50.
-4n3 + 8n2 - 4n + 7
Zero
The answer is 0.
20a plus 14 will be 34a minus 8a minus 7 34a minus 8 is 26a minus 7 is 19a. The single b is 1b plus 6b which is 7b minus 2b equals 5b.