Thesimplifiedexpressionis 19y + 5.We have,Tosimplifytheexpression7y + 6 - 1 + 12y, combineliketerms:7y + 12y + 6 - 1Combinethe y terms:(7y + 12y) + 6 - 119y + 6 - 1Combinethe constant terms:19y + 5Therefore,Thesimplifiedexpressionis 19y + 5.Learn more aboutexpressionshere:brainly.com/question/3118662#SPJ6...

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