heidicallejas heidicallejas
  • 28-09-2020
  • Mathematics
contestada

7x+5=3x-13 + 2x
Please help

Respuesta :

camilla1657
camilla1657 camilla1657
  • 28-09-2020

Answer: x = -9

Step-by-step explanation:

3x + 2x = 5x

7x + 5 - 5 = 5x - 13 - 5

Subtract 5 from both sides

7x + 5 - 5 = 5x - 13 - 5

simplify

7x = 5x - 18

Subtract 5x from both sides

7x - 5x = 5x -18 - 5x

simplify

2x = -18

divide both sides by 2

[tex]\frac{2x}{2}[/tex] = [tex]\frac{-18}{2}[/tex]

simplify

x = -9

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