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5x-x=22+22
4x=44
x=11
Ответ:11
10+2*49-100/10
108-100/10
8/10
<span>4/5</span>
Y`=(1-√(x²+1) - x*(-2x/2√(x²+1))/(1-√(x²+1))²=(1-√(x²+1) - x²/√(x²+1))/(1-√(x²+1))²=
=(√(x²+1)-x²-1-x²)/√(x²+1)(1-√(x²+1))=(√(x²+1)-2x²-1)/√(x²+1)(1-√(x²+1))²
y`(√3)=(2-6-1)/2*1=-5/2=-2,5
5(3x - 5) - 3(6x - 3) = 5x - 4
15x - 25 -18x + 9 = 5x - 4
-25 + 9 + 4 = 5x + 18x - 15x
-12 = 8x
x = -12/8
x = - 1 1/2
Ответ: - 1 1/2.