Question

срочно помогите пожалуста

Answer 1

$1.2(2x - 3) = 0.5(4x +3 ) \\ 2.4x - 3.6 = 2x + 1.5 \\ 2.4x - 2x = 1.5 + 3.6 \\ 0.4x = 5.1 \\ x = 5.1 \div 04 \\ x = 51 \div 4 \\ x = 12.75$

$2.1x - 3(2.5x + 3.6) = 10.4x - 7.64 \\ 2.1x - 7.5x - 10.8 = 10.4x - 7.64 \\ 10.4x + 5.4x = - 10.8 + 7.64 \\ 15.8x = - 3.16 \\ x = - 3.16 \div 15.8 \\ x = - 31.6 \div 158 \\ x = - 0.2$