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OpenStudy (dakid88):
A student simplifies (6b + 4r) – (2b + r) and says that the result is 4b + 5r. Explain the error and describe the correct steps to simplify the expression.
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OpenStudy (firekat97):
have you tried simplifying the equation by opening up the brackets?
OpenStudy (dakid88):
yes
OpenStudy (firekat97):
okay so what did you get? Can you show me your working?
OpenStudy (dakid88):
i got 25.5
OpenStudy (firekat97):
wait can I see your working please?
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