Answer:
[tex]c = -2[/tex]
Step-by-step explanation:
[tex]-12c - 4 + 7.5c - 11 = -6[/tex]
Combine like terms:
[tex]-12c + 7.5c[/tex]
[tex]==> -4.5c[/tex]
-4.5c -4 - 11 = -6
[tex]-4 - 11[/tex]
[tex]==> -15[/tex]
-4.5c - 15 = -6
Add 15 to both sides:
-15 + 15 = -6 + 15
0 9
-4.5c = 9
Divide both sides by -4.5:
[tex]\frac{-4.5c}{-4.5} = \frac{9}{-4.5}[/tex]
c = -2
