Final answer:
The x-intercept of the line 7x - 17y = -28 is -4.
Step-by-step explanation:
The x-intercept of the line 7x - 17y = -28 can be found by setting y to zero and solving the equation for x. To do this, we substitute 0 for y and solve for x: 7x - 17(0) = -28, which simplifies to 7x = -28. Dividing both sides by 7 gives x = -4. Therefore, the x-intercept of the given line is -4.