Question

For Brainly Benefactors,

Find the following

8x-3/3X=2
9x/7-6x=15

x-2=7
z/z+15=4/9

Answer 1

(8x - 3)/3x = 2
8x - 3 = 2 x 3x
8x = 3 + 6x
8x - 6x = 3
2x = 3
x = 3/2
Verification :
L.H.S = (8x - 3)/3x
= (8 x 3/2 - 3)/(3 x 3/2)
= (12 - 3)/(9/2)
= (9 x 2)/9
= 2 = R.H.S

9x/(7 - 6x) = 15
9x = 15 x (7 - 6x)
9x = 105 - 90x
9x + 90x = 105
99x = 105
x = 105/99
x = 35/33
Verification :
L.H.S = 9x/(7 - 6x)
= [(9 x 35)/33] ÷ [7 - (6 x 35/33)]
= (3 x 35/11) ÷ [7 - (2 x 35/11)]
= (105/11) ÷ (7 - 70/11)
= (105/11) ÷ [(77 - 70)/11]
= 105/11 ÷ 7/11
= 105/7
= 15 = R.H.S

Answer 2

Answer:

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