Ответ:
1.)2x-(10-8x)=2x-10+8x=10x-10
2.)-(2c-6)+6=-2c+6+6=-2c+12
3.)-(-2-4a)-(3a+5)=2+4a-3a-5=-3+a
4.)(5-3y)+(-3y-11)=5-3y-3y-11=-6-6y
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Ответ:
1.)2x-(10-8x)=2x-10+8x=10x-10
2.)-(2c-6)+6=-2c+6+6=-2c+12
3.)-(-2-4a)-(3a+5)=2+4a-3a-5=-3+a
4.)(5-3y)+(-3y-11)=5-3y-3y-11=-6-6y