SOLUTION: Solve each system by the substitution method. 4x-5y=-2 3y-x=-3 ----------- ----------- ---- 4x+5y=-2 4y-x=11 ----------- ----------- -

Question 36904This question is from textbook Elementary and intermediate algebra
: Solve each system by the substitution method.
4x-5y=-2
3y-x=-3
----------------------------
4x+5y=-2
4y-x=11
------------------------------
2x+y=9
2x-5y=15
----------------------------------
3y-x=0
x-4y=-2 This question is from textbook Elementary and intermediate algebra

Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
X=3+3Y SUB IN FIRSAT EQUATION WE GET 4(3+3Y)-5Y=-2 OR 12+12Y-5Y=-2 OR
7Y=-14 OR Y=-2 & X=3+3Y OR X=3+3(-2) OR X=3-6 OR X=-3
X=4Y-11 SUB IN THE FIRST EQUATION WE GET 4(4y-11)+5y=-2 or 16y-44+5y=-2 or
21y=42 or y=42/21 or y=2 & x=4*2-11 or x=8-11 or x=-3
X=3Y+3 SUB IN THE FIRST EQUATION WE GET 4(3Y+3)-5Y=-2 OR 12Y+12-5Y=-2 OR
7Y=-14 OR Y=-2 & X=3*(-2)+3 OR X=-6+3 OR X=-3
X=3Y SUB IN THE SECOND EQUATION WE GET 3Y-4Y=-2 OR Y=2 & X=3*2 OR X=6

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