Question

3(х+1)=2(1-х)+6
5,4(0,5х+4)=8,1(4+х)​

Answer 1

Ответ:

1) 1

2) -2

удачки!!

Пошаговое объяснение:

$1) \: 3(x + 1) = 2(1 - x) + 6 \\ 3x + 3 = 2 - 2x + 6 \\ 3x + 2x = 2 + 6 - 3 \\ 5x = 5 \\ x = 5 \div 5 \\ x = 1 \\ \\ 2) \: 5.4(0.5x + 4) = 8.1(4 + x) \\ 2.7x + 21.6 = 32.4 + 8.1x \\ 2.7x - 8.1x = 32.4 - 21.6 \\ - 5.4x = 10.8 \\ x = 10.8 \div ( - 5.4) \\ x = - 2$