Respuesta :

devishri1977

Answer:

Step-by-step explanation:

Like terms have same variables and exponents

12b and 7b are like terms

15 & -8  are like terms

12b + 15 + 7b - 8 + 7x = 12b + 7b + 15 - 8 + 7x

                                   = 19b + 7 + 7x

abdulwaffygamer

Answer:

12b+15+7b-8+7x     = 19b+7+7x

Step-by-step explanation:

12b+7b+15-8+7x

19b+15-8+7x

19b+7+7x

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