0.3x+3.8=5.72-0.1x

Add 0.1x to both sides of the equation.

0.3x+3.8+0.1x=5.72

Add 0.3x and 0.1x.

0.4x+3.8=5.72

0.4x+3.8=5.72

Subtract 3.8 from both sides of the equation.

0.4x=5.72-3.8

Subtract 3.8 from 5.72.

0.4x=1.92

0.4x=1.92

Divide each term in 0.4x=1.92 by 0.4.

0.4×0.4=1.920.4

Cancel the common factor of 0.4.

x=1.920.4

Divide 1.92 by 0.4.

x=4.8

x=4.8

Solve for x 0.3x+3.8=5.72-0.1x