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27-11-2018
Mathematics

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1. 19x+7.8+4.8x-4.9+3y
2. 18y-7y+8.5+y2+9.7

1 19x7848x493y2 18y7y85y297 class=

Respuesta :

27-11-2018

1.

19x + 7.8 + 4.8x - 4.9 + 3y combine like terms

= (19x + 4.8x) + 3y + (7.8 - 4.9)

= 23.8x + 3y + 2.9

2.

18y - 7y + 8.5 + y² + 9.7 combine like terms

= y² + (18y - 7y) + (8.5 + 9.7)

= y² + 11y + 18.2

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