Solve the Linear Equation: What is X in 10 + 9x = 91?

To solve the equation $10 + 9x = 91$, we'll follow these steps:

• Step 1: Eliminate the constant term on the left side by subtracting 10 from both sides of the equation.

$10 + 9x - 10 = 91 - 10$ $9x = 81$

• Step 2: Solve for $x$ by dividing each side of the equation by the coefficient of $x$, which is 9.

$\frac{9x}{9} = \frac{81}{9}$ $x = 9$

Hence, the value of $x$ is $9$.