Solve for x: the quantity of x plus 20 over 2 = 3x

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

Two lines that do not intersect are skew. always sometimes or never

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68