Question

aplique a propriedade distributiva para simplificar as seguintes expressoes algebricas:
a) 4.(x+8)-7x



b) -(9+t)-7t



c)9x+6.(7x-8)+13

Answer 1

a) 4.(x+8)-7x

4x + 32 - 7x ==> - 3x + 32
=============================================
b) -(9+t)-7t

- 9 - t - 7t ==. - 9 - 8t
===========================================
c)9x+6.(7x-8)+13

9x + 42x - 48 + 13 ==> 51x - 25

Answer 2

a) 4.(x+8)-7x

4x + 32 - 7x ==> - 3x + 32
=============================================
b) -(9+t)-7t

- 9 - t - 7t ==. - 9 - 8t
===========================================
c)9x+6.(7x-8)+13

9x + 42x - 48 + 13 ==> 51x - 25