Question

http://prntscr.com/5pzpb4

Answer 1

are u sure?

Answer 2

\[a \left( b+c \right)=a*b+a*c\]

Answer 3

I am not so sure

Answer 4

a=5
b=8
c=7
x=?

Answer 5

First, distribute 5 into the parenthesis. @rainbow_dashie

Answer 6

5 x 8. And 5 x 7. Then add them together.

Answer 7

That gives you your left side of the equal sign.

Answer 8

5 times x = 5x

Answer 9

The multiply 5 x 7.

Answer 10

Then subtract the value of the left side by that.

Answer 11

Then divide the left side by 5x. And, C is incorrect.

Answer 12

no need to distribute,you can simply say x=8 by comparison with
a(b+c)=a*b+a*c
you can easily say x=8