№1023.
2)
3х+1 ≤ 4x - 5
1 + 5 ≤ 4x -3x
x≥6
x∈ [6,∞)
4)
6-5y>3y-2
6+2>3y+5y
8y<8<br>y<1<br>x∈(-∞,1)
6)
(x/6) + 1/2 > x - 1/3
1/2 + 1/3 > x - (x/6) | * 6
6x - x < 3 + 2
5x<5<br>x<1<br>x∈(-∞,1)
№1024.
2)
5(u+2) + 14 < 6-u
5u+10 +14 <6-u<br>5u+u<6-24<br>6u< -18
u< -18/6
u< - 3
u∈(-∞, - 3)
4)
4(u+3)< 3(u+2)
4u + 12 < 3u + 6
4u - 3u < 6 - 12
u < -6
u∈(-∞, -6)
6)
3/5 * (5u - 2/3) < u + 7.6
3/5 * 5u/1 - 3/5 * 2/3 < u + 7.6
3u - 2/5 < u + 7.6
3u - 0.4 < u + 7.6
3u - u < 7.6 + 0.4
2u < 8
u< 8/2
u < 4
u ∈ ( - ∞ , 4 )