5:6
5x+6x=11x
6x=13,8a
6x=13,8 //:6
x=2,3
5*2,3a= 11,5a
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5:6
5x+6x=11x
6x=13,8a
6x=13,8 //:6
x=2,3
5*2,3a= 11,5a