SOLUTION: 4x-y=4 5x+5y=9 Solve using the substitution method

SOLUTION: 4x-y=4 5x+5y=9 Solve using the substitution method

Algebra.Com

Question 467606: 4x-y=4
5x+5y=9
Solve using the substitution method
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
4x-y=4
4x-4=y
5x+5y=9
5x+5(4x-4)=9
5x+20x-20=9
25x=29
x=29/25
y=16/25

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