4x - 3 = 9
4x = 9 + 3
4x = 12
x = 3
hope that helps, God bless!
Given:


To find:
The obtuse angle between the given pair of straight lines.
Solution:
The slope intercept form of a line is
...(i)
where, m is slope and b is y-intercept.
The given equations are


On comparing these equations with (i), we get


Angle between two lines whose slopes are
is

Putting
and
, we get



Now,
and 
and 
and 
, so it is an obtuse angle and
, so it is an acute angle.
Therefore, the obtuse angle between the given pair of straight lines is 120°.
Replace x with a couple of numbers, solve for Y them mark those points on the graph and connect with a line.
See picture:
Answer:
3/11
3:11
Step-by-step explanation:
8x+6=62
Subtract 6 from both sides
8x= 56
Divide both sides by 8
x=7
Final answer: The number is 7