4 x raised to 4 minus 5 x raise to 3 minus 7 x + 1 / 4 x minus 1
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(3-7x+1/4x-1)+(4-5x)+4x
4x-5x-7x+1/4x+3-1+4
4x-12x+1/4x+6
4x-12x+1/4x=-6
4(4x-12x+x)/4= -6
(16x-48x+4x)= -6×4
20x-48x= -24
-28x= -24
x= -24/-28
=24/28
=6/7. (both devide by 4)
#mark brainlist
4x-5x-7x+1/4x+3-1+4
4x-12x+1/4x+6
4x-12x+1/4x=-6
4(4x-12x+x)/4= -6
(16x-48x+4x)= -6×4
20x-48x= -24
-28x= -24
x= -24/-28
=24/28
=6/7. (both devide by 4)
#mark brainlist
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