Question

Ayudenme porfa

10x+12=40

2x+5=16

3x+2x=14+6

8x+13=10x+23

x+2x=5+7

14x+25=5x+40

Answer 1

Respuesta:

$10x = 40 - 12\\10x = 28\\x = 28 / 10\\x = 2.8\\2x = 16 - 5\\2x = 11\\x = 5.5\\\\5x = 20\\x = 20 / 5\\x = 4\\\\3x + 13 = 10x + 23\\3x - 10x = 23 - 13\\- 7x = 10\\x = 10 / - 7\\x = - 1.42857\\\\3x = 12\\x = 12 / 3\\x = 4\\\\4x + 25 = 5x + 40\\4x - 5x = 40 - 25\\4x = 15\\x = 15 / 4\\x = 3.75$

Explicación paso a paso: