Question

How do you solve `13d + - 3d + 85d - 94d + - 19= - 49`?

Answer 1

`d=-30`

Explanation:

To solve an equation means to find what the unknown variable equals to (in this case, we want to find what d equals to.)

Start by gathering like terms together. Let's put all the ones with variables to the left, and constants (numbers with no variables) on the right. I'm going to put the equations in addition format and bracket the numbers for easier identification.

`(13d)+ (-3d)+(85d)+(-94d)+ (-19) =(-49)`

`(13d)+(-3d)+(85d)+(-94d)+(-19)+(19)=(19)+(-49)`
Note: I added 19 on both sides to remove it from the left, and place it on the right.

`1d=-30`

`d=-30`