Answer:
-30
Step-by-step explanation:
Let the number be x.
This means that

I’m pretty sure it’s 53 but if it’s wrong sorry.
Answer:
1) x = 30
2) x = 11.6
Step-by-step explanation:
1) 2x = 4x - 60 (vertical angles are equal)
subtract 4x from each side of the equation:
-2x = - 60
divide both sides by -2:
x = 30
2) 7x + 16 + 3x + 48 = 180° (supplementary angles add up to 180°)
combine like terms:
10x + 64 = 180
subtract 64 from both sides of the equation:
10x = 116
divide both sides by 10:
x = 11.6
Answer:
x=-2.531
Step-by-step explanation:
we have

we can divide the expression above into two equations
--->equation A
----> equation B
The solution of the original expression is the same that the x-coordinate of the intersection point both graphs
using a graphing tool
The intersection point is (-2.531,2.062)
see the attached figure
therefore
The solution is x=-2.531