Solve 0.07=0.12-x/2(0.18)^2

$$0.07 = 0.12 - \frac { x } { 2 } ( 0.18 ) ^ { 2 }$$

Solve for x

$$x = \frac{250}{81} = 3\frac{7}{81} \approx 3.086419753$$

Steps for Solving Linear Equation

Multiply both sides of the equation by 2.

$$0.14=0.24-x\times 0.18^{2}$$

Calculate 0.18 to the power of 2 and get 0.0324.

$$0.14=0.24-x\times 0.0324$$

Swap sides so that all variable terms are on the left hand side.

$$0.24-x\times 0.0324=0.14$$

Multiply -1 and 0.0324 to get -0.0324.

$$0.24-0.0324x=0.14$$

Subtract 0.24 from both sides.

$$-0.0324x=0.14-0.24$$

Subtract 0.24 from 0.14 to get -0.1.

$$-0.0324x=-0.1$$

Divide both sides by -0.0324.

$$x=\frac{-0.1}{-0.0324}$$

Expand \frac{-0.1}{-0.0324} by multiplying both numerator and the denominator by 10000.

$$x=\frac{-1000}{-324}$$

Reduce the fraction \frac{-1000}{-324} to lowest terms by extracting and canceling out -4.

$$x=\frac{250}{81}$$