45x678 using the distributive property

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction