Question

Solve for x and explain

Answer 1

I haven’t done this in a while but I’ll try ….

2x - 12 + 2x + 4 = 80
4x - 8 = 80
+ 8 = + 8
4x = 88
Divide by 4
x = 22
Maybe… I hope it’s right!

Answer 2

`x=22`

Explanation:

Because
`\angle ABC=\angle ABD+\angle DBC=80^(\circ)`, we have that
`(2x+4)+(2x-12)=80`.

Combining like terms on the left side gives
`4x-8=80`.

Adding
`8` to both sides gives
`4x=88`.

Dividing both sides of the equation by
`4` gives
`\boxed{x=22}`.