Which of the following values of x is a solution to the equation negative 2 x plus 8 equals 14?

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Answer! if you don’t mind, can you explain

What is the perimeter of an equilateral triangle if each side is (x+3)?