Solve 3.14*xdiv3(20^2+12^2+20*12)=12308.8

$$3.14 \times x \div 3( { 20 }^{ 2 } + { 12 }^{ 2 } +20 \times 12)=12308.8$$

Solve for x

$$x=15$$

Steps for Solving Linear Equation

Multiply both sides of the equation by 3.

$$3.14x\left(20^{2}+12^{2}+20\times 12\right)=36926.4$$

Calculate 20 to the power of 2 and get 400.

$$3.14x\left(400+12^{2}+20\times 12\right)=36926.4$$

Calculate 12 to the power of 2 and get 144.

$$3.14x\left(400+144+20\times 12\right)=36926.4$$

Add 400 and 144 to get 544.

$$3.14x\left(544+20\times 12\right)=36926.4$$

Multiply 20 and 12 to get 240.

$$3.14x\left(544+240\right)=36926.4$$

Add 544 and 240 to get 784.

$$3.14x\times 784=36926.4$$

Multiply 3.14 and 784 to get 2461.76.

$$2461.76x=36926.4$$

Divide both sides by 2461.76.

$$x=\frac{36926.4}{2461.76}$$

Expand \frac{36926.4}{2461.76} by multiplying both numerator and the denominator by 100.

$$x=\frac{3692640}{246176}$$

Divide 3692640 by 246176 to get 15.

$$x=15$$