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Dragutel243
a fost răspuns

Efectuati ecuatile:6x3x=72,5x-2x=36,8x-2x+5x=242,7x3(x+2)=2016,8x2(x-5)-4x=26.Va rog frumos.

Răspuns :

6x3x=72
3x=72:6
3x=12
x=12:3
x=4

5x-2x=36
3x=36
x=36:3
x=12

8x-2x+5x=242
6x+5x=242
11x=242
x=242:11
x=22

7x3(x+2)=2016
24(x+2)=2016
x+2=2016:24
x+2=84
x=84-2
x=82



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