solve the equation and check your answer.
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Answered by
7
By cross multiplication,
Verification:-
L.H.S
R.H.S
=2
L.H.S= R.H.S
⟹4x-3= 5x+15
⟹4x-5x= 15+3
⟹-x= 18
⟹x=-18
Verification:-
4(-18)-3= 5(-18)+15
⟹ -72-3= -90+15
⟹-75= -75
L.H.S= R.H.S
Answered by
1
1)
13x -8=2(4x+1)
13x -8=8x+2
13x -8x= 2+8
5x = 10
x = 2
cheking:-
Sub x=2 in L.H.S
=(13(2) -8)/4(2)+1
=(26-8)/8+1
= 18/9
=2
L.H.S = R.H.S
2)
4x -3 = 5(x+3)
4x -3 = 5x + 15
4x - 5x = 15+3
-x = 18
x= -18
Checking:-
Sub x= -18 in L.H.S
=(4(-18)-3)/-18+3
=(-72-3)/-15
= -75/-15
=5
L.H.S = R.H.S
13x -8=2(4x+1)
13x -8=8x+2
13x -8x= 2+8
5x = 10
x = 2
cheking:-
Sub x=2 in L.H.S
=(13(2) -8)/4(2)+1
=(26-8)/8+1
= 18/9
=2
L.H.S = R.H.S
2)
4x -3 = 5(x+3)
4x -3 = 5x + 15
4x - 5x = 15+3
-x = 18
x= -18
Checking:-
Sub x= -18 in L.H.S
=(4(-18)-3)/-18+3
=(-72-3)/-15
= -75/-15
=5
L.H.S = R.H.S
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