[tex] 3.24x + 8.37x -8.09=7.83 [/tex]
adding 3.24 x and 8.37x on the right side:
[tex] 3.24x + 8.37x -8.09=7.83 [/tex]
[tex] 11.61x -8.09=7.83 [/tex]
adding 8.09 to both sides:
[tex] 11.61x =7.83+8.09 [/tex]
[tex] 11.61x =7.83+8.09 [/tex]
[tex] 11.61x =15.92 [/tex]
dividing both sides by 11.61
Answer : x=1.37
