-28=7(x-7) What does x=

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.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

If 25% of y is 30, what is 60% of y?