greenlollipop3
greenlollipop3 greenlollipop3
  • 17-10-2018
  • Mathematics
contestada

Which value of x makes the open sentence true?

7 - x = 3x + 5


a. x = 3

b. x = 0.5

c. x = 2

d. x = 1.5

Respuesta :

4R13L
4R13L 4R13L
  • 17-10-2018

Answer:

x=1/2 or 0.5

B. 0.5

Step-by-step explanation:

Step one: Add x to both sides

you then get the equation 7=4x+5

Step two: subtract 5 from both sides

you then get the equation 2=4x

Divide both sides by 4 to undo the multiplication.

2/4=4x/4x

you get x=2/4 which simplifies to 1/2.

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