find x ............fast plz
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Answered by
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49 = 7^2
343 = 7^3
7^2+x = 7^3(2x-5)
2 + x = 6x - 15
5x = 17
x = 17/5
343 = 7^3
7^2+x = 7^3(2x-5)
2 + x = 6x - 15
5x = 17
x = 17/5
ShuchiRecites:
wrong yrr
its 2+x but not 2x+x then how you wrote 3x
thanks
your welcome
Answered by
0
☆Hello friend☆--------
An interesting question.
49×7^x=(343)^2x-5
7^2×7^x=7^3(2x-5)
7^2+x=7^6x-15
2+x=6x-15
2+15=6x-x
17=5x
or 3 whole 2 by 5
hope it helps☺☺☺
An interesting question.
49×7^x=(343)^2x-5
7^2×7^x=7^3(2x-5)
7^2+x=7^6x-15
2+x=6x-15
2+15=6x-x
17=5x
or 3 whole 2 by 5
hope it helps☺☺☺
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