Question

13x-5<15x+5<7x+15 solve​

Answer 1

Answer:

-5<x<5/4

Step-by-step explanation:

case 1:

13x-5<15x+5 or, -5-5<15x-13x or, -10<2x, Or, -5<x

case2:

15x+5<7x+15 or,15x-7x<15-5 or, 8x<10 Or, x<5/4

Hence, From case1 and case2; -5<x<5/4

:))

Answer 2

SOLUTION

13× -5 < 15× + 4 < 7× +12,× € R

Take 13× -5 < 15× +4

13× < 15× + 9

0 < 2× +9

-9 < 2×

_ _9 < x

2

and

15× +4 < 7× +12

15× < 7× +8

8× < 8

x < 1

: _ _9 < x < 1

2

i.e -4.5 < × < 1

Solution set = {× : -4.5 < × < 1, × € R}

The solution on the number line is as follows:

See the photo on the upper side....this may help you in solving the question...

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