x-y=52
x=3y+4
<em><u>x=3*24+4=76</u></em>
3y+4-y=52
2y=48
<em><u>y=24</u></em>
76-24=52
76/24=3 остаток 4
Log3<span> 25/log</span>3<span> 5=log</span>5<span> 25=2
ответ 2
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1)2x-3=0.5x+3
2x-0.5x=3+3
1.5x=6
X=6:1.5
X=4
2)x²-6x+8=x+2
X²-6x+x=8-2
6x=6
X=6:6
X=1