упростите выражения :2x+4x-2,1+7 , 3(x+9) - x+3+5x, 9(y-6)+5y , 2(x+4)+3(x+5)+4(2-х), 11x+14+5(x+9)-7. Created by zhanseitovamari. matematika-ru

упростите выражения :2x+4x-2,1+7 , 3(x+9) - x+3+5x, 9(y-6)+5y , 2(x+4)+3(x+5)+4(...

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упростите выражения :2x+4x-2,1+7 , 3(x+9) - x+3+5x, 9(y-6)+5y , 2(x+4)+3(x+5)+4(2-х), 11x+14+5(x+9)-7

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2x+4x-2,1+7=6х+4,9;///3(x+9) - x+3+5x=3х+27-х+3+5х=7х+30;///9(y-6)+5y=9у-54+5у=14у-54;///2(x+4)+3(x+5)+4(2-х)=2х+8+3х+15+8-4х=Х+31;///11x+14+5(x+9)-7=11х+14+5х+45-7=16х+52

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2х + 4х - 2,1 + 7 = 6х + 4,9
3(х + 9) - х +3 + 5х = 3х + 27 - х + 3 + 5х = 7х + 30
9 (у - 6) + 5у = 9у - 54 + 5у = 14у - 54
2(х + 4) + 3(х + 5) + 4(2 - х) = 2х + 8 + 3х + 15 + 8 - 4х = х + 31
11х + 14 + 5(х + 9) - 7 = 11х + 14 + 5х + 45 - 7 = 16х + 52

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