1. Remember what we know about vertical angles and solve for X.
(4x-7)
(3x+2)

Step-by-step explanation:

Both will be equal ,

4x-7 =3x +2

solve it we will get ,

x =9 degree

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!