What value of x makes the equation 4abc+13abc+x+23abc=0 true ?
-6abc
-5abc
-8abc
-7abc
4abc+13abc+x+23abc=0
⟹ x=0−4abc−13abc−23abc
⟹ x=0−4abc−(13+23)abc
⟹ x=−4abc−(1)abc
⟹ x=−5abc
4abc+13abc+ ___ +23abc = 0