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CALDARAR
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rezolvati ecuatile x+5=7. x-3=10. 5x=15. 5x+2=4x+8. 3x+4=x+8. 5(x+3)-4x=20. 2(x+3)+2(x+5)=28. 10x-8=9x+10. 15x+3=18. 6x-5x=10. 9x+3=8x+5. 17x-16x=8. 7x-5x=10. 9x-8x=15. 10x+21=41. Va rog ajutatimi

Răspuns :

Alinaclau2000
x+5=7,x=7-5,x=2;x-3=10,x=10-3,x=7;5x=15,x=15:3,x=5;5x+2=4x+8,5x-4x=8-2,1x=6,x=6:1=1;
X+5=7;x=7-5;x=2 . x-3=10;x=10+3;x=13 5x=15;x=15:5;x=3 6x-5x=10;1x=10 ;x=10:1 ;x= 10

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