Question

10 x (150-3)=(10x150) ( _x3)

Answer 1

I'm not sure if it's 10x or 10 times a number

Answer 2

10 x (150-3) actually equals 1470
So we have to make (10 x 150) (_ x 3) = 1470
let's call the blank "a"

Now let's solve
(10 x 150) (a x 3) = 1470
10 times 150 equals 1500

1500 x (a x 3) = 1470
3 times a equals 3a because thats the correct way to write it.

1500 x 3a = 1470
-1500 -1500
Now subtract 1500 on both sides of the equal sign

3a = -30
3a ÷ 3 = -30 ÷ 3
1a = -10

Lastly divide 3 on both sides of the equal sign.

a = -10