Respuesta :

The x is a placeholder for a number. Think of x like a box and inside the box will go a number. In this case, -4 will replace x

7 - 2x = 7 - 2(-4) = 7 + 8 = 15

Answer: 15

X = - 4

7 - 2x

7 - 2(-4)

7 - ( - 8 )

7 + 8

15 ✔️