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How do you solve: #5x + 3x = 80#?

Answer 1

Savannah Anderson

See a solution process below:

First, merge similar terms on the equation's left side:

#5x + 3x = 80#

#(5 + 3)x = 80#

Eight times is 80.

Now, divide each side of the equation by #color(red)(8)# to solve for #x# while keeping the equation balanced:

#(8x)/color(red)(8) = 80/color(red)(8)#

#(color(red)(cancel(color(black)(8)))x)/cancel(color(red)(8)) = 10#

#x = 10#

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Answer 2

Kennedy Adams

Combine like terms: 8x = 80 Divide both sides by 8: x = 10

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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.