Question 265518
your equation is:


(70-y) / (0-8) = .5


simplify this to get:


(70-y) / (-8) = .5


multiply both sides of this equation by (-8) to get:


(70-y) = .5 * (-8)


simplify to get:


70 - y = -4


subtract 70 from both sides of this equation to get:


-y = -4 - 70


simplify to get:


-y = -74


multiply both sides by (-1) to get:


y = 74


confirm by substituting for y in your original equation to get:


(70 - 74) / (-8) = .5


simplify to get:


-4 / (-8) = .5


simplify to get:


.5 = .5 confirming the value for y is good.