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b=-1/5
69-x=x+96
-x-x=96-69
-2x=27/:(-2)
x=-13,5
licze na maxa;)
b=-1/5
69-x=x+96 I +x
2x+96=69 I -96
2x=-27
x=-13,5
b= -1/5 (minus jedna piąta)
69-x=x+96 | +x-96
2x=-27 |:2
x=-13,5