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Rezolvati urmatoarea ecuatie (8+3x). 14-30=1762


Răspuns :

(8+3x)14-30=1762

112+42x-30=1762

42x=1762-112+30

42x=1680

x=1680:42

x=40

(8+3x)×14-30=1762 (8+3x)×14=1762+30 (8+3x)×14=1792 8+3x=1792÷14 8+3x=128 3x=128-8 3x=120 X=120÷3 X=40