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How do you solve #15=2x-7#?

Answer 1

Hazel Anglin

#color(blue)(x = 11#

#15 = 2x -7# #15 + 7= 2x # #22= 2x #

#x = 22/2 #

#color(blue)(x = 11#

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Answer 2

Eli Assouline

To solve 15 = 2x - 7, first, add 7 to both sides of the equation to isolate the term with the variable:

15 + 7 = 2x - 7 + 7

Then, simplify:

22 = 2x

Next, divide both sides of the equation by 2:

22 / 2 = 2x / 2

Which simplifies to:

11 = x

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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