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- 29 = - 4 = 5u

add 4 to each side

- 29 + 4 = - 4 + 4 + 5u

- 25 = 5u

divide both sides integers by 5

- 25/5 = (5/5)u

- 5 = u

========check in original equation

- 29 = - 4 + 5(- 5)

- 29 = - 4 - 25

- 29 = - 4 + (- 25)

- 29 = - 29

=============checks

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12y ago

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