Помогите плиз м 92:’-(

Question

Помогите плиз м 92:’-(

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Comments

помогите(:-(:’-(:-[:*(:|

Answer 1

1)?-20=40*6
?=40*6
?=240+20
?=260
2)15+?=800\20
?=800\20
?=40-15
?=25

Answer 2

1) х-20=40*6
1   40*6=240
х-20=240
2   240+20=260
х=260.
2) 15+х=800:20
1   800:20=40
15+х=40
2   40-15=25
х=25