101га+127га
Правильно точно
1) x=+(-1,9)
х=-1,9
2) x=-(+0,75)
х=-0,75
<span>1) 6х - 3/7х = 5 7/7x - 3/7x = 5 4/7
</span><span>2) 5/8у-у = - | y - 5/8y | = -3/8y
3) 2/5х+х = 1 2/5 x
4) 7,5у-7у = 0,5 y
5) 1/8х+3/8х-1/2х = 1/8x+3/8x-4/8x = 0
6) 4/9у+5/9у-1/3у = </span>4/9у+5/9у - 3/9y=6/9y=2/3y
1-790002
2-756089
3-915127
4-26613
5-21138
1/2x-1=1/3x+1/4
1/2x-1/3x=1+1/4
3/6x-2/6x=5/4
1/6x=5/4
x=7,5