X + 12 -59 =29
5 + X x 7 = 40
40 + 80 : Y = 80
78 - a : 4 = 68
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x+12= 29+59=88 x=88-12 x= 76
5 + x = 40 -5 = 35 X x 7 = 35 X = 5
40 + 80 : Y = 80 80: Y = 40 Y = 2
78 - a : 4 = 68 a : 4 = 10 a= 40

Răspunsuri

2014-03-21T17:54:41+02:00
X+12=29+59=88 x=88-12 x=76 
 5+x=40-5=35 Xx7=35  x=5