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9x+2y = -33
-51 7
x= -33 2 = -102+231 = 129 = -3
10 7 20 - 63 -43
9 2
10 -51
y= 9 -33 = -330 + 459 = 129 = -3
10 7 20 - 63 -43
9 2
2.- 5x-8y = 10
-3x-2y = -40
10 -8
x= -40 -2 = -20 + 320 = -340 = 10
5 -8 -10 - 24 -34
-3 -2
5 10
y= -3 -40 = -200 + 30 = -170 = 5
5 -8 -10 - 24 -34
VERIFICACION
5 (10) - 8 (5) = 10
50 - 40 = 10
10 = 10