Solve Ed=2,8/10*7-10/3,3-2,8

$$E d = \frac { 2,8 } { 10 } \times \frac { 7 - 10 } { 3,3 - 2,8 }$$

Solve for E

$$E=-\frac{42}{25d}$$

$$d\neq 0$$

Steps for Solving Linear Equation

Expand \frac{2,8}{10} by multiplying both numerator and the denominator by 10.

$$Ed=\frac{28}{100}\times \left(\frac{7-10}{3,3-2,8}\right)$$

Reduce the fraction \frac{28}{100} to lowest terms by extracting and canceling out 4.

$$Ed=\frac{7}{25}\times \left(\frac{7-10}{3,3-2,8}\right)$$

Subtract 10 from 7 to get -3.

$$Ed=\frac{7}{25}\times \left(\frac{-3}{3,3-2,8}\right)$$

Subtract 2,8 from 3,3 to get 0,5.

$$Ed=\frac{7}{25}\times \left(\frac{-3}{0,5}\right)$$

Expand \frac{-3}{0,5} by multiplying both numerator and the denominator by 10.

$$Ed=\frac{7}{25}\times \left(\frac{-30}{5}\right)$$

Divide -30 by 5 to get -6.

$$Ed=\frac{7}{25}\times \left(-6\right)$$

The equation is in standard form.

$$dE=-\frac{42}{25}$$

Divide both sides by d.

$$\frac{dE}{d}=-\frac{\frac{42}{25}}{d}$$

Dividing by d undoes the multiplication by d.

$$E=-\frac{\frac{42}{25}}{d}$$

Divide -\frac{42}{25} by d.

$$E=-\frac{42}{25d}$$

Solve for d

$$d=-\frac{42}{25E}$$

$$E\neq 0$$

Steps for Solving Linear Equation

Expand \frac{2,8}{10} by multiplying both numerator and the denominator by 10.

$$Ed=\frac{28}{100}\times \left(\frac{7-10}{3,3-2,8}\right)$$

Reduce the fraction \frac{28}{100} to lowest terms by extracting and canceling out 4.

$$Ed=\frac{7}{25}\times \left(\frac{7-10}{3,3-2,8}\right)$$

Subtract 10 from 7 to get -3.

$$Ed=\frac{7}{25}\times \left(\frac{-3}{3,3-2,8}\right)$$

Subtract 2,8 from 3,3 to get 0,5.

$$Ed=\frac{7}{25}\times \left(\frac{-3}{0,5}\right)$$

Expand \frac{-3}{0,5} by multiplying both numerator and the denominator by 10.

$$Ed=\frac{7}{25}\times \left(\frac{-30}{5}\right)$$

Divide -30 by 5 to get -6.

$$Ed=\frac{7}{25}\times \left(-6\right)$$

The equation is in standard form.

$$Ed=-\frac{42}{25}$$

Divide both sides by E.

$$\frac{Ed}{E}=-\frac{\frac{42}{25}}{E}$$

Dividing by E undoes the multiplication by E.

$$d=-\frac{\frac{42}{25}}{E}$$

Divide -\frac{42}{25} by E.

$$d=-\frac{42}{25E}$$