Question

1) d) -9y+2×(5y-2)=.
2) d) 12 -6 d, quando d=8

Answer 1

Resposta:

1) -9y + 2x(5y-2) = 0

-9y + 10y - 10 =0

y - 10 = 0

y = 10

2) 12-6d, quando d=8

12 - 6d

12 - 6 x 8

12 - 48

- 36