A*64+78=526

To solve the equation \( a \cdot 64 + 78 = 526 \), follow these steps:

1. Subtract 78 from both sides: \[ a \cdot 64 = 526 - 78 \] \[ a \cdot 64 = 448 \]

2. Divide both sides by 64 to find \( a \): \[ a = \frac{448}{64} \] \[ a = 7 \]

So the value of \( a \) is 7.