Respuesta :

Answer:

-8

Step-by-step explanation:

3x4= 12, 7+3=10x2=20

12-20= -8

Answer:

The value of the expression is -8

Step-by-step explanation:

Numerical value of expressions

We are given the expression:

3x - 2(y + 3)

Let's find its value for x = 4 and y = 7.

Substituting both values into the expression:

3*4 - 2(7 + 3)

Operating:

12 - 2(10)

12-20

-8

The value of the expression is -8