Question

solve it.........!!!!!!!!!!
please answere me in note book

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Answer 1

Answer:

5 ( 2x+5)=3 (3x+7)

10x+25 = 9x+21

10x-9x = 21-25

x= -4

Answer 2

Answer:

HERE IS YOUR ANSWER :

A)     2x+5           3      

----------=    -------

3x+7            5

cross multiply

5( 2x + 5 ) = 3(3x+7)

10x + 25 = 9x + 21

10x - 9x = 21 - 25

x = -4

B)  by taking L.C.M.

x+2 + x+1           2

---------------    =

x^2 +3x+2         x+10

after cross multiply

2x^2 + 23x + 30         =         x^2 +3x+2  

------------------------------------------------------          

2x^2  -x^2   + 23 x - 3 x +30-2 = 0

-------------------------------------------------

x^2 + 20x +28 = 0

D = root b^2 -4ac

D=(20)^2 - 4(1)(28)

D=400-112

D=root 288

D =  root

Step-by-step explanation: