An equation will remain equal if the same thing is done to both sides of the equation

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The value of a variable that makes an equation true. States that both sides of an equation will remain equal if you add the same amount from each side. Addition Property of Inequality. States that both sides of an inequality will remain true if you add the same amount from each side.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

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answer: 2530

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