How do you simplify #2x-3# if #x=4#?

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Answer 1 · 2017-08-29T22:49:52

Turn x into 4.

#2(4)-3#
(Parentheses means to multiply)
#8-3#
#5#

Answer 2 · 2017-08-29T22:51:30

The answer is #5#.

Given:

#2x-3#

#x=4#

Substitute #4# for #x#.

#2xx4-3#

Simplify.

#8-3#

Simplify.

#5#