Solve the following system of equations below x-2y=3 2x-3y=9
2 answers:
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I used a dash line because the term 'less than' does not include the value itself.
The subtraction theorem states that for all real numbers, 
and 
, 
.
(To subtract, we can add the inverse.)
Thus, we can have the these two equivalent expressions.
(To subtract, we can add the inverse.)
Thus, we can have the these two equivalent expressions.