Question

674-[(78×7-3042:9):X]×8=258 va roggggggggf dau coroanaaaaaaa

Answer 1

Răspuns

Explicație pas cu pas:

674 - [ ( 78 × 7 - 3042 : 9 ) : X ] × 8 = 258

[ ( 546 - 338 ) : X ] × 8 = 674 - 258

( 208 : X ) × 8 = 416

208 : X = 416 : 8

208 : X = 52

X = 208 : 52

X = 4 → numarul, aflat prin metoda mersului invers

Answer 2

Salut !

$674 - [(78 \times 7 - 3042:9):x] \times 8 = 258$

$[(546 - 338):x] \times 8 = 674-258$

$[208:x] \times 8 =416$

$208:x =416:8$

$208:x =52$

$x = 208:52$

$x = 4$

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