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(23-6x3+g)+3x9-8x3-28=34

Răspuns :

(23-6×3+g)+3×9-8×3-28=34 (23-6×3+g)+27-24=34+28=62 (23-6×3+g)+27=62+24=86 (23-18+g)=86-27=59 (5+g)=59 g=59-5 g=54