Решите уравнение а)14+4*(5x-2)=44x-30 б)7x-12=3*(9x+8)-2x в)30+5*(3x-1)=35x-15 С...

Решите задачу:

$14 + 4(5x - 2) = 44x - 30 \\ 14 + 20x - 8 = 44x - 30 \\ 20x - 44x = - 30 - 14 + 8 \\ - 24x = - 36 \\ x = \frac{ - 36}{ - 24} \\ x = 1.5$
$7x - 12 = 3(9x + 8) - 2x \\ 7x - 12 = 27x + 24 - 2x \\ 7x - 27x + 2x = 24 + 12 \\ - 18x = 36 \\ x = \frac{36} { - 18} \\ x = - 2$
$30 + 5(3x - 1) = 35x - 15 \\ 30 + 15x - 5 = 35x - 15 \\ 15x - 35x = - 15 - 30 + 5 \\ - 20x = - 40 \\ x = \frac{ - 40}{ - 20} \\ x = 2$