Question

Which is a correct way of evaluating the expression 15x + 30x for x = 2?

Answer 1

Answer:

The best way to do this solution ,is to put give value of X in given linear equation.

Step-by-step explanation:

= 15x + 30x

= 15 * 2 + 30 * 2 ( X= 2 ,given )

= 30 + 60

= 90

Hence your answer is 90.

Hope it's clear to you ..

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Answer 2

The correct answer is "x=90".

Step-by-step explanation:

$Given:\\15x+30x\\and,\\x=2\\On \ putting \ the \ value \ of \"x" \ in \ the \ above \ equation,we \ get\\=15\times 2+30\times 2\\=30+60\\=90$

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