Type a digit that makes this statement true.

7,781,45
is divisible by 9.

The digit that makes this statement true is 4.

Here's a trick to check if the number is divisible by 9.

We add all the digits together, and if the final result is 9, then the number is

If we plug in the digit 1, the final result won't be 9.

Same with 2, 3, 5, 6, 7, 8, 9 and 0.

Let's check 4:

7+7+8+1+4+5+4=14+9+9+4=14+18+4=14+22=36

3+6=9

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!