Math, asked by aarti69, 1 year ago

solve the following equation or problem:-

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Answers

Answered by faltuboy
0
so simpleee and easy ques ...........
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faltuboy: plzz aarti if u like answer plzz mark it as brainlist
aarti69: i liked ur answer bit he has explained ot very cleary....so, i am able to understand easily...sorry but i am going to mark his answer as brainlist!!!
aarti69: sorry once again
faltuboy: kkkk its okk
aarti69: thanks
faltuboy: welcomee
aarti69: : )
faltuboy: :-)
Answered by VemugantiRahul
1
Hi there!
Here's the answer:

°•°•°•°•°<><><<><>><><>°•°•°•°•°

49^(3x-1) ÷ 7^(-x) = 7^12
=> 7²^(3x-1) ÷ 7^(-x) = 7^12

°•° (a^m)^n = a^(m×n)

=> 7^[2(3x-1)] ÷ 7^(-x) = 7^12
=> 7^(6x-2) ÷ 7^(-x) = 7^12

°•° a^m ÷ a^n = a^(m-n)

=> 7^[(6x-2)-(-x)] = 7^12
=> 7^[6x-2+x] = 7^12
=> 7^(7x-2) = 7^12

°•° a^m = a^n => m= n

7x-2 = 12 => 7x = 14

•°• x = 2


°•°•°•°•°<><><<><>><><>°•°•°•°•°

©#£€®$

:)

Hope it helps

aarti69: thanks a lot
VemugantiRahul: my pleasure :)
aarti69: : )
aarti69: : l
aarti69: sorry by mistake...i hv sent the last one
VemugantiRahul: ok ! its a typo i know !
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