How do i simplify these two equations?
10w - 2(3w + 4) + 4
12x - (7y - 8x) + 4x -11y

Step-by-step explanation:

10w - 2(3w + 4) + 4 = 10w + (-2)*3w + (-2)*4 + 4

                              = 10w - 6w - 8 + 4

                             = 4w - 4

12x - (7y - 8x) + 4x - 11y = 12x - 7y + 8x +4x -11y

                                    = 12x + 8x + 4x - 7y - 11y

                                    = 24x - 18y

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.