<span>-42+75+(-14)+(-26)+56=-42+75-14-26+56=49</span>
1. 36^((0.5) - log6(sqrt(5)) = 36^(0.5) / 36^(log6(sqrt(5)) = 6/6^(log6(5)) = 6\5 = 1.2
2. log(0.09) (sqrt(0.027)) = log(0.3^2)(0.3^(3/2)) = (1/2)*(3/2)*log(0.3)(0.3) = 3\4 = 0.75
а) 15 - х = х - 17,
-х - х = -17 - 15,
-2х = -32,
х = -32 : (-2),
х = 16;
b) 18х = -9,
х = -9 : 18,
х = -0,5;
c) 8х - 9 = 6х + 12,
8х - 6х = 12 + 9,
2х = 21,
х = 21 : 2,
х = 10,5;
d) -3(х - 2) = 4(1 - х),
-3х + 6 = 4 - 4х,
-3х + 4х = 4 - 6,
х = -2;
e) 2 - 6(х - 1) = 3 - 4(2 - х),
2 - 6х + 6 = 3 - 8 + 4х,
8 - 6х = -5 + 4х,
-6х - 4х = -5 - 8,
-10х - -13,
х = -13 : (-10),
х = 1,3.