Question

Х-2(х+7) при х= - 12​

Answer 1

-12-2(-12+7)

-14(5)=-70

Answer 2

-12-2(-12+7)= -14(5)= -70

Answer 3

To evaluate the expression H-2(x+7) when x = -12, we need to substitute the value of x into the expression and perform the calculations.

H-2(x+7) = H-2(-12+7)

Now, simplify the expression inside the parentheses first:

H-2(-12+7) = H-2(-5)

Finally, substitute the value of x (-5) into the expression:

H-2(-5) = H-(-5)

Now, negate -5:

H-(-5) = H+5

So, when x = -12, the expression H-2(x+7) simplifies to H+5.