Question

solve it please .....​

Answer 1

Answer:

x>1.

Step-by-step explanation:

10-2(1+4x) <20

subtracting 10 on both sides

-2(1+4x) < 10

multiplying (-1) on both sides

2(1+4x) > 10

1+4x > 5

1+4x - 1> 5 -1

4x > 4

x> 1. ans

Answer 2

1--» 10 - 2(1 + 4x) < 20 :

10 - 2(1 + 4x) < 20

-2(1 + 4x) < 10

(1 + 4x) > 5

4x > 4

x > 1

Thus, all the values of x greater than 1 satisfies the given inequality. That is, x € (1, ∞)

2--» (2y+1)/2 + 1 ≤ 3 :

(2y+1)/2 + 1 ≤ 3

(2y+1)/2 ≤ 2

2y+1 ≤ 4

2y ≤ 3

y ≤ 3/2

Thus, the given inequality holds good for all values of y less than or equal to 3/2. That is, y € (-∞, 3/2]