Question

Помогите мне срочно нужно

Answer 1

1.

$25(x + 2) - 4(y - 3) - (25x - 4y + 61) = 25x + 50 - 4y + 12 - 25x + 4y - 61 = 1$

2.

$7.8(3x - 5) + (80 - 39y) - 0.3(10 + 78x - 130y) = 23.4x - 39 + 80 - 39y - 3 - 23.4x - 39y = 38$