Question

5 x – 11 + 2 . ( 2x + 3 ) = 2 x + 9

Answer 1

Respuesta:

x=2

Explicación paso a paso:

5x - 11 + 2•2x + 2•3 = 2x + 9

5x - 11 + 4x + 6 = 2x + 9

5x + 4x -11 + 6 = 2x + 9

9x - 5 = 2x + 9

9x - 2x = 9 + 5

7x = 14

x = 14÷7

x=2