Solve 40-8I+60-20I-20*8I=0

$$40 - 8 I + 60 - 20 I - 20 \times 8 I = 0$$

Solve for I

$$I=\frac{25}{47}\approx 0.531914894$$

Steps for Solving Linear Equation

Add 40 and 60 to get 100.

$$100-8I-20I-20\times 8I=0$$

Combine -8I and -20I to get -28I.

$$100-28I-20\times 8I=0$$

Multiply 20 and 8 to get 160.

$$100-28I-160I=0$$

Combine -28I and -160I to get -188I.

$$100-188I=0$$

Subtract 100 from both sides. Anything subtracted from zero gives its negation.

$$-188I=-100$$

Divide both sides by -188.

$$I=\frac{-100}{-188}$$

Reduce the fraction \frac{-100}{-188} to lowest terms by extracting and canceling out -4.

$$I=\frac{25}{47}$$