Question 172451
 I need help solving a substitution problom 
1/2x+y=2
2x+3y=9
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1/2x+y=2
x + 2y = 4
x = 4-2y
Sub into 2nd eqn
2*(4-2y) + 3y = 9
8-4y + 3y = 9
8 - y = 9
y = -1
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2x+3y = 9
2x - 3 = 9
2x = 12
x = 6