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Algebraic
For the following exercises, determine whether the ordered triple given is the solution to the system of equations.
For the following exercises, solve each system by substitution.
For the following exercises, solve each system by Gaussian elimination.
Extensions
For the following exercises, solve the system for
and
Real-world applications
At a family reunion, there were only blood relatives, consisting of children, parents, and grandparents, in attendance. There were 400 people total. There were twice as many parents as grandparents, and 50 more children than parents. How many children, parents, and grandparents were in attendance?
70 grandparents, 140 parents, 190 children
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Questions & Answers
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Source:
OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
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