Question

3x+7 при х=7 х=0 х= -3​

Answer 1

Ответ:

3•7 +7=28

3•0+7= 7

3•(-3)+7 =-2

Answer 2

3x+7 при x=7 ⇒ 3*7+7=21+7=28

3x+7 при x=0 ⇒ 3*0+7=0+7=7

3x+7 при x=-3 ⇒ 3*(-3)+7=-9+7=-2

Answer 3

To evaluate the expression 3x + 7 for different values of x, let's substitute the given values:

1. When x = 7: 3(7) + 7 = 21 + 7 = 28

2. When x = 0: 3(0) + 7 = 0 + 7 = 7

3. When x = -3: 3(-3) + 7 = -9 + 7 = -2

Therefore, the values of the expression 3x + 7 for x = 7, x = 0, and x = -3 are 28, 7, and -2, respectively.