How to solve 9x-2 × 27x=3

x = 1

Step-by-step explanation:

Using the rules of exponents

=

× ⇔

Note that 9 = 3² and 27 = 3³ , thus

×

= ×

= ×

=

= , then

=

Since the bases on both sides are equal, equate the exponents

5x - 4 = 1 ( add 4 to both sides )

5x = 5 ( divide both sides by 5 )

x = 1

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

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