# How do you solve #15= - d + 20#?

##### 1 Answer

#### Explanation:

Subtract

#15 - 20 = - d + 20 - 20#

#-5=-d#

You then can multiply both sides by

#-5 * (-1) = -d * (-1)#

#5=d#

The other way to do this is to add

#15+d=20#

and then subtract

#5=d#

Either way, both of these work.