You cannot, since "x equals 0" and "y equals 0" are NOT inequalities!
If x and y are counts of things, or measures (such as length) which must be positive then the reason for such constraints should be obvious.
Inequalities don't equal anything.
The question contains two equations:5x - 6y = 15 5x + y = 2 There are no inequalities in the question.
An expression, or, more pedantically, inequalities.
None. Properties of inequalities are not that relevant when solving equalities.
No, but incorrect application of mathematics can make it look like it does.
"≠" is not equals.
Inequalities don't equal anything.
The question contains two equations:5x - 6y = 15 5x + y = 2 There are no inequalities in the question.
An expression, or, more pedantically, inequalities.
You infer that the value of x, which satisfies the equations or inequalities, is zero!
None. Properties of inequalities are not that relevant when solving equalities.
round brackets '()' represents > or < i.e. 'greater than' or 'less than' square brackets '[]' represents >= or
About 22 cups
No, but incorrect application of mathematics can make it look like it does.
if there are no comparison signs (equals or inequalities, ie =, >, < etc) then it is an expression, eg "x + 5" If there is a comparison sign which is not equals, then it is an inequality, eg "x > 5"
They both: - have variables, - are open sentences, - consist of two expressions joined by a "verb" (equals or inequality sign), - have solution sets (which may be empty or have one or more elements).
One important difference between solving equations and solving inequalities is that when you multiply or divide by a negative number, then the direction of the inequality must be reversed, i.e. "less than" becomes "greater than", and "less than or equal to" becomes "greater than or equal to".Actually, from a purist's sense, the reversal rule also applies with equations. Its just that the reversal of "equals" is still "equals". The same goes for "not equal to".