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2*x+3=17
4*x+7=27
9+3*x=51
2*4*x=320
5*x/7=175
24/(4*x)=3
144/(2x)=6
Aflati-l pe x . Va rog



Răspuns :

2x+3=17 => 2x=17-3 => 2x=14 => x=7
4x+7=27 => 4x=20 => x=5
9+3x=51 => 3x=42 => x=14
8x=320 => x=40
5x=175*7 => 5x=1225 => x=245
24/(4x)=3 => 6x=3 => x=0,5
144/(2x)=6 => 72x=6 => x=[tex] \frac{6}{72}= \frac{2}{24}= \frac{1}{12} [/tex]