(920-x)÷20+25=63 и (150÷y+7)×40=480

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Let's solve the equations one by one.

1) (920-x)÷20 + 25 = 63

First, let's simplify the left side of the equation:

(920 - x) ÷ 20 + 25 = 63
(920 - x) ÷ 20 + 25 = 63
(920 - x) ÷ 20 = 38 (subtract 25 from both sides)
920 - x = 760 (multiply both sides by 20)
920 - 760 = x
160 = x
x=160

Therefore, x = 160 is the solution to the first equation.

2) (150÷y + 7)×40 = 480

First, let's simplify the left side of the equation:

(150 ÷ y + 7) × 40 = 480
(150 ÷ y + 7) = 480 ÷ 40
150 ÷ y + 7 = 12
150 ÷ y = 5
y = 150 ÷ 5
y = 30

Therefore, y = 30 is the solution to the second equation.

So, the solutions to the two equations are x = 160 and y = 30.