What is the value of 2x{6+[12 divided by (3+1)]}-1
Does anyone know ?

17

Step-by-step explanation:

First you do the problem in the parentheses ( 3+1 ) which equals 4 then the brackets which is [ 12 divided by 4 ] which is 3 then the parentheses 6 + 3 equals 9 then times 2 which is 18 - 1 is 17 so your answer is. 17 notify me if I'm right or wrong

sup

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870