Ответ:
a) 6x-12=5x+4
6x-5x=4+12
1x=16
x=16÷1
x=16
6×16-12=5×16+4
84=84
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Ответ:
a) 6x-12=5x+4
6x-5x=4+12
1x=16
x=16÷1
x=16
6×16-12=5×16+4
84=84