<h2>2(2x-1)+3=17-2x</h2><h2>4x-+2x=17-3+2</h2><h2>6x=16</h2><h2>x=2·4÷6</h2>
(x-2)/3=(x-3)/2 +2
Найдем общий знаменатель ( 3*2*1=6), он равен 6.
(2x-4-3x+9-12)/6=0
-x-7=0
x = - 7
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log9 3^(5x - 5) = 4
log9 9^ ((5x-5)/2) = log9 9^4
(5x - 5)/2 = 4
5x - 5 = 8
5x = 13
x = 13/5
x = 2,6
Ответ. 2,6
(1/3) ^ -1 = 3
(-6/7) ^ 0 = 1
(1/2) ^ 2 = 4
3 - 1 + 4/2 = 2+2=4
Ответ : 4