Respuesta :

Let the missing value = x

Rewrite -1 1/2 as -1.5

-2.1 - x = -1.5

Add 2.1 to both sides:

-2.1 - x + 2.1 = -1.5 +2.1

X = -0.6


Answer: C. -0.6

Answer:

  C.  -0.6

Step-by-step explanation:

This two-step linear equation can be solved in the usual way. Reverse what is done to the variable.

Solution

Add the opposite of the constant on the left.

  -2.1 +2.1 - __ = -1.5 +2.1 . . . add 2.1 to both sides

  - __ = 0.6 . . . . . . . . . . . . . . . simplify

Multiply both sides by -1.

  __ = -0.6

The value that makes the equation true is -0.6.

  -2.1 -(-0.6) = -1.5 . . . . check