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2(2x+7)+3(x+2)=5(x-1)-1 ecuatia

Răspuns :

2(2x+7)+3(x+2)=5(x-1)-1
4x+14+3x+6=5x-5-1
7x+20=5x-6
4x+14+3x+6=5x-5-1
4x+3x-5x=-5-1-14-6
2x=-26
x=-26:2
×=-13

Sper ca te-am ajutat))