If f(x) = -7x^7 + 3x^3 + x - 5, and g(x) is a polynomial such that the degree of f(x) + g(x) is 5, then what is the degree of g(x)?
+37157 g(x) must be of degree 7 also to cancel out the f(x) degree 7 .... like this
-7x7 + 3x^3 ...... + 7x7 + 5x5 = 5x^5 + 3x^3
