1- Resolva as questoes de 1º grau

a) 4x+2=2x+14





b) 5x+2-x=18





c) 2x+4x-5x=12





d) 4x-12=x+3






e) 2x=16





f) 4x=24





2- determine dois pares ordenados que sao soluçoes das questoes de 1º grau de duas incognitas abaixo :


a) x+y=9


b) 5.x+y=19


c) x-y=8



agradeço a quem me ajudar !!!

<3 <3 <3 <3
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