Solve 1.5x+1.4*66-1.5x/1.2=9

$$1.5x+1.4 \times \frac{ 66-1.5x }{ 1.2 } = 9$$

Solve for x

$$x=272$$

Steps for Solving Linear Equation

Divide each term of 66-1.5x by 1.2 to get \frac{66}{1.2}+\frac{-1.5x}{1.2}.

$$1.5x+1.4\left(\frac{66}{1.2}+\frac{-1.5x}{1.2}\right)=9$$

Expand \frac{66}{1.2} by multiplying both numerator and the denominator by 10.

$$1.5x+1.4\left(\frac{660}{12}+\frac{-1.5x}{1.2}\right)=9$$

Divide 660 by 12 to get 55.

$$1.5x+1.4\left(55+\frac{-1.5x}{1.2}\right)=9$$

Divide -1.5x by 1.2 to get -1.25x.

$$1.5x+1.4\left(55-1.25x\right)=9$$

Use the distributive property to multiply 1.4 by 55-1.25x.

$$1.5x+77-1.75x=9$$

Combine 1.5x and -1.75x to get -0.25x.

$$-0.25x+77=9$$

Subtract 77 from both sides.

$$-0.25x=9-77$$

Subtract 77 from 9 to get -68.

$$-0.25x=-68$$

Divide both sides by -0.25.

$$x=\frac{-68}{-0.25}$$

Expand \frac{-68}{-0.25} by multiplying both numerator and the denominator by 100.

$$x=\frac{-6800}{-25}$$

Divide -6800 by -25 to get 272.

$$x=272$$