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Solve the absolute value equation: |5x - 10| = |5x +25|

1 Answer

3 votes

Answer: x=-3/2

Solve Absolute Value.

|5x−10|=|5x+25|

We know either5x−10=5x+25or5x−10=−(5x+25)

5x−10=5x+25(Possibility 1)

5x−10−5x=5x+25−5x(Subtract 5x from both sides)

−10=25

−10+10=25+10(Add 10 to both sides)

0=35

5x−10=−(5x+25)(Possibility 2)

5x−10=−5x−25(Simplify both sides of the equation)

5x−10+5x=−5x−25+5x(Add 5x to both sides)

10x−10=−25

10x−10+10=−25+10(Add 10 to both sides)

10x=−15

10x

10

=

−15

10

(Divide both sides by 10)

x=

−3

2

Check answers. (Plug them in to make sure they work.)

x=

−3

2

(Works in original equation)

Answer:

x=

−3

2

Clear Absolute Value Equation

Explanation:

User Octavian Helm
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