Question

Solve the equation 7(w + 13) = 35.

I know that it is:
7w + 20 = 35
- 20 - 20
7w/7 = 15/7
But I just don't know what 15 divided by 7 is as a fraction. Some one please help this is due in a week!

Answer 1

7(w+13)=35 {Here, 7 is wholly multiplied to w and 13}

7w+91=35

7w=35-91= -56

w=
`(-56)/(7)`

w= -8

Proof:

7(-8+13)= -56+91= 35

Therefore, w= -8

Answer 2

w = -8

Explanation:

7(w + 13) = 35

Divide each side by 7

7/7(w + 13) = 35/7

w+13 = 5

Subtract 13 from each side

w+13-13 =5-13

w = -8

Or you can distribute

7w +91 = 35

Subtract 91 from each side

7w+91-91 = 35-91

7w = -56

Divide each side by 7

7w/7 = -56/7

w = -8