Решите уравнения:
д) 5-2/3(x-3/5)=-1/2-2/3x;
е) 3/7x+2/5=3/5(5/7x+2/3);
з)7x-3/6=1-2x+4/3;
к) 27у(5у-3)+2у=9у(15у-7)+6,4
д) 5-2/3(x-3/5)=-1/2-2/3x;
е) 3/7x+2/5=3/5(5/7x+2/3);
з)7x-3/6=1-2x+4/3;
к) 27у(5у-3)+2у=9у(15у-7)+6,4
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Answers & Comments
5-2/3x-2/5=-1/2-2/3x, 3/7x+2/5+3/7x+2/5 14x=17/6
-5/10-50/10+4/10=-5,1 2/5-2/5=3/7x-3/7x x=17/6÷14
2/5-2/5=0 x=119/3
к)135y²-81y+2y=135y²-63+6,4
-76y=-56,6
y=-76/-56,6
y19/14,15