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7w^{2}+3w+8-8w^{2}+8w-7+5w^{2}-7w+6
To find the opposite of 8w^{2}-8w+7, find the opposite of each term.
-w^{2}+3w+8+8w-7+5w^{2}-7w+6
Combine 7w^{2} and -8w^{2} to get -w^{2}.
-w^{2}+11w+8-7+5w^{2}-7w+6
Combine 3w and 8w to get 11w.
-w^{2}+11w+1+5w^{2}-7w+6
Subtract 7 from 8 to get 1.
4w^{2}+11w+1-7w+6
Combine -w^{2} and 5w^{2} to get 4w^{2}.
4w^{2}+4w+1+6
Combine 11w and -7w to get 4w.
4w^{2}+4w+7
Add 1 and 6 to get 7.
7w^{2}+3w+8-8w^{2}+8w-7+5w^{2}-7w+6
To find the opposite of 8w^{2}-8w+7, find the opposite of each term.
-w^{2}+3w+8+8w-7+5w^{2}-7w+6
Combine 7w^{2} and -8w^{2} to get -w^{2}.
-w^{2}+11w+8-7+5w^{2}-7w+6
Combine 3w and 8w to get 11w.
-w^{2}+11w+1+5w^{2}-7w+6
Subtract 7 from 8 to get 1.
4w^{2}+11w+1-7w+6
Combine -w^{2} and 5w^{2} to get 4w^{2}.
4w^{2}+4w+1+6
Combine 11w and -7w to get 4w.
4w^{2}+4w+7
Add 1 and 6 to get 7.