Question

evaluate -7(x-4y) then x=-4 and y=-6

a 140
b 52
c -28
d -140

Answer 1

$- 7(x - 4y) \\ \\ put \: \: x = - 4 \: \: \: ( \: given) \: \: \\ \\ y = - 6 \: \: \: ( \: given) \\ \\ \\ = > - 7( - 4 - 4( - 6)) \\ \\ = > - 7( - 4 + 24) \\ \\ = > - 7(20) \\ \\ = > - 140$


So, the required answer is d ) - 140.

Answer 2

Hola ^_^

Here is your answer

Question -

-7x (x - 4y)

-7[(-4) -4(-6) ]

= -7 [-4(-24)]
= -140

answer -

-140