Решите уравнения:

а ) 10 - 4х + 3 = 9х - 2 - 6х +9 - 7х +6

 

б ) 0,5 (8р - 1) - 0,7 (4р + 1) + 8(0,7 - 0,4р) = 0,9.

 

Спасибо заранее ))

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