Question

#202 спочно даю 30 баллов

Answer 1

Ответ:

Пошаговое объяснение:

1)

12*(x - 2) = 36*5

12x - 24 = 180

12x = 180 + 24

12x = 204

x = 204 : 12

x = 17

========

2)

92*(x - 5) = 36*23

92x - 460 = 828

92x = 828 + 460

92x = 1288

x = 1288 : 92

x = 14

======

3)

36*(3x - 11 ) = 63*4

108x - 396 = 252

108x = 252 + 396

108x = 648

x = 648 : 108

x = 6

Answer 2

Ответ:

1) $\frac{x-2}{36} =\frac{5}{12} /*36\\x-2=15\\x=17$

2) $\frac{x-5}{23} = \frac{36}{92}  / *92\\4x-20 = 36\\4x = 56\\x = 14$

3)$\frac{4}{3x-11} = \frac{36}{63}\\\frac{4}{3x-11} = \frac{4}{7} /*3x-11\\4 = \frac{12x - 44}{7} /*7$

28 = 12x-44

12x = 72

x=6