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OpenStudy (anonymous):
You are asked to write a single variable equation to solve a word problem with two unknown amounts. What do you do?
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OpenStudy (anonymous):
You can usually get 2 equations. Whichever equation is easiest to solve for x or y. Solve that one for x or y and plug the result in for the variable in the other equation. Then you will have an equation with only 1 unknown.
OpenStudy (anonymous):
you'll need to create two equations and have a 'system of equations' then use direct stubstitution to turn the equation into one.
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