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Simplify these expressions

Simplify these expressions-example-1
User Smila
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6b + (5b-2) = 11b-2

(20-2y) + 9y = 20+7y

(7a+15b) + (25-3b) = 7a + 12b + 25
User Hiroshi
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6 votes
Trust me the guy above is right
User Amprantino
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