Question

помогите плез даю 100б
(12*у+у)-17=42

Answer 1

(12у + у) - 17 = 42
13у = 42 + 17
13у = 59
у = 59 : 13
у = 4ц 7/13
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Answer 2

(12× y+y)- 17=42
12×2y-17=42
12×2y=42+17
12×2y=59
2y=59÷12
2y=4,91
y=4,91÷2
y=2,455