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(d×2-190)÷6+3×295=1000

Răspuns :

(dx2-190):6+3x295=1000
(dx2-190):6+885=1000
(dx2-190):6=1000-885
(dx2-190):6=115
(dx2-190)=115x6
(dx2-190)=690
dx2=690+190
dx2=880
d=880:2
d=440