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If 8 ∙ 2x = 5(y+8), then when y = -8, x =???​

Answer»

Answer:

8 ∙ 2x = 5(y+8).

or, 8 ∙ 2x = 5(-8+8).

or, 2x = 50.

or, 2x = 1 [ANYTHING to the POWER 0 is 1 then, 50 = 1].

Taking LOG on both sides,

log 2x = log 1.

or, X log 2 = 0 [since log 1 = 0].

or, x = 0/log 2 [dividing log 2 on both sides].

THEREFORE, x = 0


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