find the value of x
1) 25^2x-3 = 5^2x+3
2) (4)^2x-1 - (16)^x-1 =384
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50x-3=10x+3
40x=6
X=6/40
X=3/20
so, X will 0.15
40x=6
X=6/40
X=3/20
so, X will 0.15
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