Evaluate the definite integrals using properties of the definite integral and the fact that $\_3^3$f$($x$)$dx$=-4,\_3^4$f$($x$)$dx$=7.$ and $\_3^4$g$($x$)$dx$=5$

a$.)\_3(^3)6$f$($x$)$dx$=$ b$.)\_-3^4$f$($x$)$dx$=$ c$.)\_3^4($f$($x$)-$g$($x$))$dx$=$ d$.)\_3^4(3$f$($x$)+4$g$($x$))$dx$=$