Solve 7x+13x=100 x= square (Simplify your answer. Type an integer or a decimal.)

To solve the equation $7x + 13x = 100$, we first combine like terms on the left side of the equation. This gives us $20x = 100$. Then, we divide both sides of the equation by 20 to solve for x. This gives us $x = \frac{100}{20} = 5$. Therefore, the solution to the equation is $x = 5$.