16 + 4x + 2x-3x + x = 0

16 + 4x + 2x - 3x + x = 0

First, simplify 16 + 4x + 2x - 3x + x to get 16 + 4x. / Your problem should look like: 16 + 4x = 0
Second, subtract 16 from both sides. / Your problem should look like: 4x = -16
Third, divide both sides by 4. / Your problem should look like: x = 
Fourth, simplify  to get 4. / Your problem should look like: x = -4

 x = -4

16+4x+2x−3x+x=0

Simplify:

16+4x+2x−3x+x=0

16+4x+2x+−3x+x=0

(4x+2x+−3x+x)+(16)=0(Combine Like Terms)

4x+16=0

Subtract 16 from both sides.

4x+16−16=0−16

4x=−16

Divide both sides by 4.

4x/4=−16/4

x=−4