Rewrite the equation so the variable is alone.

Solve to find the value of the variable.

42=-2h

Divide both sides by 2.
Then change the signs of both sides.
That will provide the answer.

Possibly in 1 step:
Divide by -ve 2

To rewrite the equation so the variable is alone, we need to isolate the variable "h" on one side of the equation.

The equation is: 42 = -2h

To do this, we will use inverse operations to undo the operations on the variable.

First, we want to get rid of the coefficient -2 that is multiplying the variable "h". To do this, we can divide both sides of the equation by -2.

42 divided by -2 is -21, and -2h divided by -2 is just h.

So, after dividing both sides by -2, the equation becomes:
h = -21

The variable "h" is now alone on one side of the equation.

To solve for the value of the variable, we determined that "h" is equal to -21.

And that is the final answer: h = -21.