Muzhdahhamidi Muzhdahhamidi
  • 13-08-2020
  • Mathematics
contestada

Is x=3 a solution for the equation: 3x + 7 = 13
Why or why not ?

Respuesta :

NoblePenguin
NoblePenguin NoblePenguin
  • 13-08-2020

Answer:

No.

Step-by-step explanation:

There are two different ways to do this - solve for x in the given equation or substitute the value for x and see if you get a true statement.

3x + 7 = 13 subtract 7 from both sides

3x = 6 divide by 3 on both sides

x = 2

3(3) + 7 = 13

9 + 7 = 13

16 ≠ 13

Therefore, x = 3 is not a solution for 3x + 7 = 13.

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