Question

выразите у через х из уравнения 10х-5у-7=0

Answer 1

5y = 10x - 7

y = (10x - 7) : 5

y = 2x - 1,4

Answer 2

$10x - 5y - 7 = 0 \\ 10x - 5y = 7 \\ 5y = 10x - 7 \\ y = \frac{10x -7 }{5} = 2x - \frac{7}{5}$