What is 4-w equals 7?

Answer 1

4 - w = 7

subtract 4 from each side

4 - 4 - W = 7 - 4

- W = 3

divide both sides by - 1 ( remember, the implied coefficient of w is - 1 )

(- 1/- 1)w = 3/- 1

w = - 3

=======check in original equation

4 - (- 3) = 7

4 + 3 = 7

7 = 7

========checks