SOLUTION: prove that if {{{a<b}}} and {{{c<d}}} then {{{a+c<b+d}}}

SOLUTION: prove that if {{{a<b}}} and {{{c<d}}} then {{{a+c<b+d}}}

Algebra.Com

Question 505225: prove that if and then
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

Since , by adding to both sides we have
Since , by adding to both sides we have
Thus we have implying
.
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