Please answer all of question 6 and 7

6. Solve the following system of equations algebraically. 3x - y = 0 5x + 2y = 22 2.6.4 Test (TST): Functions and Relations 4/7 Copyright @ 2023 Apex Learning Inc. Use of this material is subject to Apex Learning's Terms of Use. Any unauthorized copying, reuse, or redistribution is prohibited. Part I: Multiply one of the equations by a constant in order to solve by elimination. Show the new system of equations below. (2 points) Part II: Combine the two equations to eliminate one of the variables. Show the result of this combination below. (2 points) Part III: Solve for the variable. What is this value? (2 points) Part IV: Substitute this value back into an equation to solve for the other variable. Write the solution to this system below. (4 points) 7. Find the solution to the two equations shown below: y = 16x - 9 y = -4x +21