Solve 1/3x+2.15=21/4

$$\frac{ 1 }{ 3 } x+2.15=2 \frac{ 1 }{ 4 }$$

Solve for x

$$x=0.3$$

Steps for Solving Linear Equation

Multiply both sides of the equation by 12, the least common multiple of 3,4.

$$4x+25.8=3\left(2\times 4+1\right)$$

Multiply 2 and 4 to get 8.

$$4x+25.8=3\left(8+1\right)$$

Add 8 and 1 to get 9.

$$4x+25.8=3\times 9$$

Multiply 3 and 9 to get 27.

$$4x+25.8=27$$

Subtract 25.8 from both sides.

$$4x=27-25.8$$

Subtract 25.8 from 27 to get 1.2.

$$4x=1.2$$

Divide both sides by 4.

$$x=\frac{1.2}{4}$$

Expand \frac{1.2}{4} by multiplying both numerator and the denominator by 10.

$$x=\frac{12}{40}$$

Reduce the fraction \frac{12}{40} to lowest terms by extracting and canceling out 4.

$$x=\frac{3}{10}$$