When i double my number and add 8 i get my number + 12 what is my number

The first thing we must do for this case is to define variables.

We have then:

x: unknown number

We now write the equation that models the problem:

From here, we clear the value of x.

The unknown number is equal to 4.

The number is:

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a