Ответы на вопрос:
4(0,7x-4)-3(-0,2x+6)=02.8x-16+0.6x-18=0
3.4x-16-18=0
3.4x-34=0
x=34/3.4
x=10
2/3(1 1/2х+3/5)-4/5(5/12-1/2)=1 3/5 11/3х + 6/15 - 1/3 + 2/5 = 13/5 11/3х = 13/5 - 2/5 +1/3 -6/5 11/3х = 39 - 6 + 5 - 18 /15 11/3х = 4/3 х = 4/3 ÷ 11/3 х = 4/3 * 3/11 х = 4/11
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