1.Запишите разность двух выражений и упростите её.
1) -5.6+m и m+3.8
2) a-b и -b+a -c
3 -5.3+1.8-x и 1.8-x-1.4
2. Раскройте скобки и упростите выражение.
3) c+(-c+d)
4) (a+1.6)-(a+2.4)
5) -(3.4-x)+(-x+1.6)
6) -(x-2.7+y)-(6.5-x)
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