(3X + 10x) умножить на 8 = 312

To solve the equation, we need to simplify the left side of the equation first.

(3X + 10X) * 8 = 312

Combining like terms:

13X * 8 = 312

104X = 312

Dividing both sides of the equation by 104:

X = 312/104

Simplifying:

X = 3

Therefore, the value of X that satisfies the equation is 3.