Let's solve the equation \( 1890 = X + (X \times 0.25) \).

1. Start by expressing \( X \times 0.25 \) as \( 0.25X \):

\[
1890 = X + 0.25X
\]

2. Combine the terms on the right side:

\[
1890 = 1X + 0.25X = 1.25X
\]

3. Now, solve for \( X \) by dividing both sides of the equation by 1.25:

\[
X = \frac{1890}{1.25}
\]

4. Perform the division:

\[
X = 1512
\]

So, \( X = 1512 \).

Would you like more details or have any questions?

Here are 5 related questions for further practice:
1. Solve \( 2000 = X + (X \times 0.20) \).
2. If \( Y = X + (X \times 0.30) \), and \( Y = 2600 \), find \( X \).
3. Solve \( 1200 = 2X + (X \times 0.50) \).
4. What is the value of \( X \) if \( 2400 = X + (X \times 0.15) \)?
5. Find \( X \) if \( 3000 = X + (X \times 0.10) \).

**Tip:** When solving equations involving percentages, it's often easier to convert the percentage to a decimal and combine like terms first before isolating the variable.

Learn how to solve the equation 1890 = X + (X * 0.25) with a detailed step-by-step solution. This problem involves basic equation manipulation and percentage calculation. Suitable for students in Grades 7-9.

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