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"
How many cups of flour equals one pound will depend on the type of flour. If you are using all purpose flour you will need less than if you are using cake flour. For all purpose flour 3 1/3 cups equals one pound, 4.5 cups of cake flour equals one pound.
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).