SOLUTION: for problems 7-9 solve the system of equations using addition to eliminate one variable. if the system has no solution, indicate that it is inconsistent. if it has infinite solutio

Question 240710: for problems 7-9 solve the system of equations using addition to eliminate one variable. if the system has no solution, indicate that it is inconsistent. if it has infinite solutions, indicate that it is inconsistent. if it has infinite that it is dependent. if the system has a solution check your answer.
4x-3y=17
5x+y=7
check (if possible)
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
Given:
---------
Equation 1:
Equation 2:
Solution:
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Start by rewritting equation 2. Since Y is by itself, solve for Y
Equation 2: Subtract 5X from both sides

Now you can plug (7-5X) into equation 1 for Y
Equation 1:
Simplify
Simplify
Add 21 to both sides
Divide both sides by 19

To find Y, plug 2 in for X into the rewritten equation 2

Simplify
Combine like terms

Chesk Solution:
---------
Using X = 2 and Y = -3, solve equation 1
Equation 1:

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