Answer:
Step-by-step explanation:
a) -2g
putting the value of g
-2[tex](\frac{3}{-1} )[/tex]
opening the brackets by multiplying
=[tex](\frac{-6}{1})[/tex]=-2g
b)f+3g
=[tex]\frac{-2}{4}+\frac{9}{-3}[/tex]
taking LCM AS 12
=[tex]\frac{-2*3}{4*3} +\frac{9*4}{-3*4}[/tex]
=-6/12-36/12
=-42/12
=-7/2
c)2f-4g
=[tex]2(\frac{-2}{4})-4(\frac{3}{-1} )[/tex]
=[tex]\frac{-4}{4}-\frac{12}{-1}[/tex]
=-1+12
=11
