Giải phương trình

To solve for x, we first need to simplify the equation:

x/50 + x/60 + 3 = 5.25

To add the fractions x/50 and x/60, we need to find a common denominator. The least common multiple of 50 and 60 is 300, so we can rewrite the equation as:

6x/300 + 5x/300 + 3 = 5.25

Combining the fractions, we get:

11x/300 + 3 = 5.25

Subtracting 3 from both sides:

11x/300 = 2.25

Now, we can solve for x by multiplying both sides by 300:

11x = 675

Dividing by 11:

x = 675/11

x ≈ 61.36

Therefore, the value of x is approximately 61.36.