Question 189527
0.3x-0.2y=4 
0.4x+0.3y=5/19 
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3x - 2y = 40 (x 10)
76x + 57y = 50 (x 190)
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171x - 114x = 2280 (x 57)
152x + 114y = 100 (x 2)
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323x = 2380
x = 2380/323
x = 140/19
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3*(140/19) - 2y = 40
-2y = 340/19
y = -170/19