Rewrite the equation as 7.5 x + 0.25 = y 7.5 x + 0.25 = y . 7.5 x + 0.25 = y 7.5 x + 0.25 = y Subtract 0.25 0.25 from both sides of the equation. 7.5 x = y − 0.25 7.5 x = y - 0.25 Divide each term in 7.5 x = y − 0.25 7.5 x = y - 0.25 by 7.5 ,7.5 and simplify.