Question

Please help !!!! Given m∥n, find the value of x.

(3x+5) (x-25) = 180 degrees

Answer 1

3x+5+x-25
4x-20=180
4x-20+20=180+20
4x=200
Divide both sides by the same factor

Cancel terms that are in both the numerator and denominator
Divide the numbers
4
x
4
=
200
4
4

4
=
2
0
0
4
x
=
50

=
5
0

Answer 2

Explanation:

`(3x+5)+(x-25)=180 \text{ \ (angles on a straight line are supplementary)}`

`4x-20=180`

`4x=200` (+20 both sides)

`x=50` (÷4 both sides)