How do you simplify #2x + 3# for #x=9#?

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Answer 1 · 2018-03-04T06:08:07

#21#

#=> 2x + 3#

#=> (2 × 9) + 3#

#=> 18 + 3#

#=> 21#

Answer 2 · 2018-03-04T06:09:31

The answer is 21

Substitute the value for #x# into the equation:

#x# = 9

#(#2 x #(9)##)# + 3 = 21

Ensure you follow the rules of BODMAS in which you do not add the values 9 and 3, then multiply by 2