Respuesta :

Putting the value of y=5 in 2x+3y=78

2x+3×5=78

2x+15=78

2x=78-15

2x=63

x=31.5

Therefore,the value of x is 31.5

Answer:

  • x = 31.5

Step-by-step Solution:

  • 2x + 3y = 78

Substituting the value of y.

  • => 2x + 3(5) = 78

Solving:

  • => 2x + 15 = 78
  • => 2x = 78 - 15

Dividing:

  • => 2x = 63
  • => x = 63/2
  • => x = 31.5

Hence, the value of x is 31.5.