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y= (33 - 5x)/2
19-3x = (33 - 5x)/2
38 - 6x = 33 - 5x
38 -33 = -5x + 6x
x = 5
y = 19 - 3(5)
y = 19 - 15
y = 4
Comprobacion
3 (5 ) + 4 = 19
15 + 4 = 19
19 = 19
5(5) + 2(4) = 33
25 + 8 = 33
33 = 33