pls solve its urgent pls
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Answered by
1
Answer:
7^2x÷7^7 / 7^4x =7^3
7^2x-7-4x =7^3 (a^x÷a^y=a^x-y)
7^-(7+2x) =7^3
-(7+2x)=3. (a^x=a^y
{x=y}
-7 -2x =3
-2x=-3-7
-2x=-10
x=5
Answered by
1
Answer:
x= -5
Step-by-step explanation:
for divide I will use "/"
we know y^x/y^z = y^(x-z)
=> Simplify numerator
=> 7^(2x-7)/7^4x
=> 7^(2x-7-4x) which is equal to 7^3
=> The powers of LHS And RHS should be equal.
=> 2x-7-4x = 3
=> -7-2x = 3
=> -2x = 10
=> x = 10/(-2)
=> x = -5
Hope it helps...
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