Раскройте скобки и приведите подобные слагаемые
1) -2,5(10а+7х)-8/11(-22х+11)
2) -5/6(12b+18)-4/9(9b-0,9)
3) -11(2x-3y)+12(3x+2y)
4) 9(-8a+7b)-13(-3a+4b)
5) -0,7(-5x+4b)+12(0,2b-0,5x)
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