Question

Розв'яжи рiвняння. a) 6x - 12 = 5x+4; - B) -12n - 3 = 11n - 3; - 6) -9а + 8 = -10а-2; г) 5,3-7x = 8,9 - 11x.​

Answer 1

Ответ:

a) x = 16

B) n = 0

6) a = 10

г) x = 0.9

Пошаговое объяснение:

a) 6x - 12 = 5x+4;

6x - 5x = 4 + 12

x = 16

B) -12n - 3 = 11n - 3

-12n - 11n = 3 - 3

-23n = 0

n = 0

6) -9а + 8 = -10а-2

-9a + 10a = -2 - 8

a = 10

г) 5.3 - 7x = 8.9 - 11x

5.3 - 8.9 = -11x + 7x

-3.6 = -4x

x = 0.9