3х+8х=132

To solve the equation 3x + 8x = 132, we need to simplify and combine like terms first.

Combining the terms on the left side:

3x + 8x = 11x

So, the equation becomes:

11x = 132

To solve for x, we need to isolate x. We can do this by dividing both sides of the equation by 11:

11x/11 = 132/11

Simplifying:

x = 12

Therefore, the solution to the equation 3x + 8x = 132 is x = 12.