Solve 0.4(0.8x+0.8)-0.25=-12.73

$$0.4 ( 0.8 x + 0.8 ) - 0.25 = - 12.73$$

Solve for x

$$x=-40$$

Steps for Solving Linear Equation

Use the distributive property to multiply 0.4 by 0.8x+0.8.

$$0.32x+0.32-0.25=-12.73$$

Subtract 0.25 from 0.32 to get 0.07.

$$0.32x+0.07=-12.73$$

Subtract 0.07 from both sides.

$$0.32x=-12.73-0.07$$

Subtract 0.07 from -12.73 to get -12.8.

$$0.32x=-12.8$$

Divide both sides by 0.32.

$$x=\frac{-12.8}{0.32}$$

Expand \frac{-12.8}{0.32} by multiplying both numerator and the denominator by 100.

$$x=\frac{-1280}{32}$$

Divide -1280 by 32 to get -40.

$$x=-40$$