Question

haganlo pliss :((((((((((((((((((((((

Answer 1

Explicación paso a paso:

• a) 4x + 20 = 3- 2x /2

2(4x + 20 ) = 3 - 2x

8x + 40 = 3 - 2x

8x + 2x = 40 - 3

10x = 37

x = 3

• b) 8 - 3n /3 = 6 - 5n /6

los divisores pasan multiplicando al otro extremo

6( 8 - 3n ) = 3( 6- 5n )

48 - 18n = 18 - 15n

18n - 15n = 48 + 18

3n = 66

n = 22

• c) 6x - 4x - 4 + x = -3x - 5 + 2x

2x - 4 + x = x -5

x - 4 = x - 5

x - x = 5 + 4

x = 9

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