Solve for x
A.3/4
B.52/7
C.17
D. 52/3

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.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39