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Pls metoda mersului invers pls dau coronaaaa
4×{7×[4×(3x + 25)-181]+15}=144​


Răspuns :

Răspuns:

4×{7×[4×(3x+25)-181]+15}=144

7×[4×(3x+25)-181]+15=144÷4

7×[4×(3x+25)-181]=36-15

4×(3x+25)-181=21÷7

4×(3x+25)=3+181

3x+25=184÷4

3x+25=46

3x=46-25

3x=21

x=21÷3

x=7