SOLUTION: Solve by elimination...
3x-y=21
2x+y=4
Algebra.Com
Question 51106: Solve by elimination...
3x-y=21
2x+y=4
Answer by Thanenjayan(7) (Show Source): You can put this solution on YOUR website!
3x-y=21 ----- 1
2x+y=4 ------ 2
(1)+(2)=> 5x = 25
x = 5
substitude x=5 in (2)
2*(5)+y = 4
y = 4-10
y = -6
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