Ответ:
1)-3x+2x=-5+4
x=1
2)5x-4x=8-3
x=5
3)7y-10y=16+11
-3x=27
x=-9
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Ответ:
1)-3x+2x=-5+4
x=1
2)5x-4x=8-3
x=5
3)7y-10y=16+11
-3x=27
x=-9