How do you evaluate 2c+ab-3d for a=3,b=5,c=4,d=2?

1 Answer
Oct 14, 2015

Answer:

#17#

Explanation:

If
#color(white)("XXX")color(red)(a=3)#
#color(white)("XXX")color(blue)(b=5)#
#color(white)("XXX")color(green)(c=4)#
#color(white)("XXX")color(cyan)(d=2)#

to evaluate
#color(white)("XXX")2color(green)(c)+color(red)(a)color(blue)(b)-3color(cyan)(d)#

replace each variable letter with its assigned value and apply standard arithmetic.

#color(white)("XXX")2(color(green)(4))+(color(red)(3))(color(blue)(5))-3(color(cyan)(2))#

#color(white)("XXX")=8+15-6#

#color(white)("XXX")=17#