** Final Answer

**

** Step-by-step Solution **

** Specify the solving method

**

**

Combining like terms $9x$ and $-x$

Learn how to solve integral calculus problems step by step online.

$6+8x=15x+x$

Learn how to solve integral calculus problems step by step online. Solve the equation 6+9x-x=15x+x. Combining like terms 9x and -x. Combining like terms 15x and x. Factor the polynomial 6+8x by it's greatest common factor (GCF): 2. Simplify, dividing both sides of the equality by 2.

** Final Answer

**