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Rearrange Literal Equations and Formulas
Grade Level
Praxis Core
5165.033 Rearrange Literal Equations and Formulas
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Which statement correctly solves x/a + x/b = c for x, while preserving necessary restrictions?
A
x = c(a + b)/(ab); restriction: a != 0 and b != 0
B
x = abc/(a + b); restriction: a != 0, b != 0, and a + b != 0
C
x = ab/(c(a + b)); restriction: c != 0 and a + b != 0
D
x = abc/(ab); restriction: a != 0 and b != 0
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