How do you solve #3x - 8\geq - 7x + 12#?

1 Answer
EZ as pi
Oct 31, 2016

#x >= 2#

Explanation:

#3x - 8 >= - 7x + 12#

Treat an inequality in the same way as an equation unless you multiply or divide by a negative, in which case the inequality sign changes around. It is therefore a good idea to try to keep the variable positive.

#3x +7x >= 12+8" "larr# all the #x# terms on one side

#10x >= 20#

#x >= 2#

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