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Margaret and Zdena weigh the same, and Petra weighs 3 kg more. Together, they weigh 156 kg. How much do they weigh?

Final Answer:

M =  51 kg
Z =  51 kg
P =  54 kg

Step-by-step explanation:

M=Z P = 3+M M+Z+P = 156  M+M+(3+M)=156  3M=153  M=3153​=51  M=51=51 kg
Z=M=51=51 kg
P=3+M=3+51=54 kg

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