$8x+\left( x \times 1.5 \right) \times 4=275$
Use the commutative property to reorder the terms$8x+\left( 1.5x \right) \times 4=275$
Remove unnecessary parentheses$8x+1.5x \times 4=275$
Calculate the product$8x+6x=275$
Collect like terms$14x=275$
Divide both sides of the equation by $14$$\begin{align*}&x=\frac{ 275 }{ 14 } \\&\begin{array} { l }x=19 \frac{ 9 }{ 14 },& x=19.6\overset{ \cdot }{ 4 } 2857\overset{ \cdot }{ 1 } \end{array}\end{align*}$