Can someone help me with this please I really need help

For the equations below which statement is true ? -2x=14 6x=-42

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9