January 2020 1 24 Report
A metade do número de figuras de um envelope mais a terça parte do número dessas figurinhas é igual a 60. Quantas figurinhas há no envelope?
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A) 2x+6=x+18b) 5x-3=2x+9c) 3 (2x-3)+2 (x+1)=3x+18d)2x+3 (x-5)=4x+9e) 2(x+1)-3 (2x-5)=6x-3f)3x-5=x-2g)3x-5=13 h) 3x+5=2i)x-(2x-1)=23 j) 2x-(x-1)=5-(x-3)
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