Question

ПОМОГИТЕ СРОЧНО СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

73e39e4c1d964c8acef76a53778b8e6a.docx

Answer 1

$1.;a)frac13x=25\x=25:frac13\x=25cdot3\x=75\\b);4x-2,1=-0,5\4x=2,1-0,5\4x=1,6\x=0,4\\c);12x-25=7x+5\12x-7x=5+25\5x=30\x=6\\d);3(x-2)-5=2(3x+1)-1\3x-6-5=6x+2-1\3x-11=6x+1\6x-3x=1+11\3x=12\x=4$

$2.;(3m+4)-(m+3)=13\3m+4-m-3=13\2m+1=13\2m=12\m=6\\3.;frac{x+17}x=10\x+17=10x\9x=17\x=frac{17}9=1frac89$

Answer 2

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