## Prealgebra (7th Edition)

1.5 = 0.4x +0.5 Subtract 0.5 from both sides 1.5 -0.5 =0.4x +0.5 - 0.5 1=0.4x $\frac{1}{0.4}$=$\frac{0.4x}{0.4}$ $\frac{10}{4}$=x 2.5 = x Check Replace x with 2.5 1.5 = 0.4x +0.5 1.5 = 0.4$\times$ 2.5+0.5 1.5 = 1 + 0.5 1.5 = 1.5