How do you evaluate the expression 3x + 8 + 4y + 7 + 3x if x=9, y=6?

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Answer 1 · 2018-03-04T15:42:17

93

#3x + 8 + 4y + 7 + 3x#

First combine the like terms

#=> (3x+3x) + (8+7)+4y#

#=> 6x + 15 + 4y#

Now put #x=9# and #y=6#.

#=> 6(9)+15+4(6)#

#=> 54+15+24#

#=> 93#