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Subjects>Math>Math & Arithmetic

How do you solve -x plus 9-2x equals -21?

Updated: 12/13/2022

Wiki User

∙ 15y ago

Best Answer

-x + 9 - 2x = -21

combine like terms -x and -2x

isolate -3x by subtracting 9 from both sides

divide both sides by -3

-3x + 9 = -21

- 9 - 9

-3x = -30

x = 10

Wiki User

∙ 15y ago

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Related questions

If x equals 5 and y equals 9 then 2x plus 11 equals?

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Solve the equation x plus 13 equals -8?

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How do you solve -2a plus 5 plus 3a equals 15-21?

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