What is the x-intercept of the line with the equation -2x+1/2y=18

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

Ineed i been stuck on this question since yesterday