What is the solution to the system?
-2x + y + 6z = 1
3x + 2y + 5z = 16
7x + 3y – 4z = 11

Need ! give step by step solutions on how to solve number one [tex]\frac{9-2\sqrt{3} }{12+\sqrt{3} }[/tex] number two [tex]x+4=\sqrt{13x-20}[/tex] number three (domain and range) [tex]f(x)=2\sqrt[3]{x} +1[/tex]

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]