а) -3 ( х - 5) + 4 ( 1 - 2 х) = -3
-3х +15 + 4 - 8х = -3 -3х -8х = -15 -4 -3 -11х = -22 х = 2
Проверка : -6 +15 +4 - 16 = -3
б) -4 ( 3х-1) + 2 ( х - 6) = 22
-12х +4 + 2х -12 = 22 -10х = -4 +12 =22 -10х = 30 х = -3
Проверка : -10 * - 3 = 30 30 = 30
а) -3 ( х - 5) + 4 ( 1 - 2 х) = -3
-3х +15 + 4 - 8х = -3 -3х -8х = -15 -4 -3 -11х = -22 х = 2
Проверка : -6 +15 +4 - 16 = -3
б) -4 ( 3х-1) + 2 ( х - 6) = 22
-12х +4 + 2х -12 = 22 -10х = -4 +12 =22 -10х = 30 х = -3
Проверка : -10 * - 3 = 30 30 = 30