Aplique a propriedade distributiva para simplificar as expressões.

a) 4 × (x + 8) -7x =

b) -(9 - t) - 7t=

c) 9x + 6 × (7x - 8) + 13=

d) -3(-y + 2) - 2 (y + 7)=

PORFAVOR ME explica as respostas!​
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