You can put this solution on YOUR website! 0.5x+y=9
1.6x+0.2y=13
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Multiply the 1st eqn by 2 and the 2nd by 10. --> no fractions
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1x + 2y = 18
16x + 2y = 130
---------------- Subtract
-15x = -112
x = 112/15
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x + 2y = 18
112/15 + 2y = 18
y = 79/15