What is the slope of a line perpendicular to the line with equation y = 1/6x – 2? pls very urgent

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

What does x = in this equation x+3+2x=x+5

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}