Question #4be45

2 Answers
Jan 12, 2018

Read below.

Explanation:

Remember: In an expression, a variable can have any value. You can only solve it when you give it a value.

So the problem is asking us what are the answers if we were to give the #x# the values of 1,2, and 3. We simply replace #x# with the numbers.

#-3x+2# is now
#-3(1)+2# for #x=1#
#-3(1)+2=-1#

#-3x+2# is now
#-3(2)+2# for #x=2#
#-3(2)+2=-4#

#-3x+2# is now
#-3(3)+2# for #x=2#
#-3(3)+2=-7#

Jan 12, 2018

#-3(1)+2=(-1)#
#-3(2)+2=(-4)#
#-3(3)+2=(-7)#

Explanation:

Substitute the x values for the expression