Question

Срочно сделайте пожалуста

Answer 1

$0.4(6 - 4y) = 0.5(7 - 3y) - 1.9 \\ 2.4 - 1.6y = 3.5 - 1.5y - 1.9 \\ 1.6y - 1.5y = 2.4 - 1.6 \\ 0.1y = 0.8 \\ y = 0.8 \div 0.1 \\ y = 8$

$- 3(2.1x - 4) - 1.6 - 2.6 = 1.2(0.5 - 5x) \\ - 6.3x + 12 - 4.2 = 0.6 - 6x \\ - 6x + 6.3x = 7.8 - 0.6 \\ 0.3x = 7.2 \\ x =7 .2 \div 0.3 \\ x =7 2 \div 3 \\ x = 24$