If the sum of a number and two is doubled the result is three less than the number

Step-by-step explanation:

a number =                                                     x

Sum of a number and two:                           (x + 2)

(Sum of a number and two) is doubled: 2 * (x + 2)

The result (put an equal sign):                         =

Three less than the number:                         x - 3

Now just put The two bolded parts together and an equal sign between them.

2(x + 2) = x -3                                                    Remove the brackets

2x + 4 = x - 3                                                     Subtract x from each side

2x - x + 4 = x -x - 3                                            Combine

x + 4 = - 3                                                          Subtract 4

x +4 - 4 = -3 - 4

x = - 7

good luck!

cutie~

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.