Solve the Equation: Finding the Value in 6 + Triangle = 26

To solve the equation $6 + \triangle = 26$, we seek the value of $\triangle$. We can easily obtain this by isolating $\triangle$ on one side of the equation.

We employ the subtraction method to isolate $\triangle$:

• Subtract 6 from both sides of the equation:

$\triangle = 26 - 6$

Perform the calculation:

$\triangle = 20$

Thus, the numerical value of the triangle is $20$.