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OpenStudy (anonymous):
Three nuts and six bolts have a combined mass of 72g. Four nuts and five bolts have a combined mass of 66g. Find the combined mass of one nut and one bolt
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OpenStudy (taramgrant0543664):
First step is to make your two equations
OpenStudy (campbell_st):
the 1st equation is 3n + 6b = 72 the easy thing to do here is now divide each term by 3... it will make it easier later n + 2b = 24 see of you can write the 2nd equation
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