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Every sentence to which standard logic applies has exactly one of the truth values (that is, either true or false, but not both). No sentence can be both true and false.
An equation is a statement that sets two mathematical expressions equal.
When both sides of an equation are numerical expressions (contain no variables), the equation is a closed statement. This means the equation can be assigned a truth value.
Example:
2 + 5 = 7 true 2(3) - 2 = 6 false
If an equation is neither true nor false, the equation is an open sentence.
An open sentence is a mathematical statement with one or more variables. When variables are present in an equation, the solution is unknown. The set of numbers that you use to represent the variable(s) is called the replacement set. The solution set is found when any value(s) for the variable from the replacement set makes the equation a true statement.
Examples: 3x+6=20; 12n-5=45; 6a+2b+7c=84; 4p>25; 9s+24<65+2s.
To solve one you have to find the value of the variable.
If an equation is true for all values of the variables involved, then it is called an identity. For example 4(x -3) = 4x - 12.
If an equation is true only for some values, then it is called a conditional equation. For example, x^2 - 3x - 4 = 0 is only true when x = -1 or x = 4, which are called the roots of there
by emile lefer a 10 year old
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Is it maths or math?
Math is the correct spelling for this sentence. Maths can be the correct spelling for this sentence. In other words it depends on how you put it in a sentence. * * * * * English : Maths US : Math
What is a variable expression in math?
a variable expression in math is a symbol that is in a sentence
What is an addition sentence?
It is and math problem :))
Sentence with scale in it in math?
"Bring the scale and let's weigh these math books."
A math sentence that has an equal sign?
This is called an equation.
Do you capitalize math if you are using it in a sentence as math committee?
No.
What is Open Office-Math used for?
Math
What does open sentence mean?
In math, that refers to an equation which includes a variable. Such an equation may be true, or false, depending on the value assigned to the variable.
Is this sentence correct you had maths or you did maths?
it is not correct, it is you had math, or you did math.
What is the difference between a math phrase and a math sentence?
Math sentence;1+2+3 Math phrase: If i had 1 sock and i got 2 more socks i would have 3.
Is it maths or math?
Math is the correct spelling for this sentence. Maths can be the correct spelling for this sentence. In other words it depends on how you put it in a sentence. * * * * * English : Maths US : Math
What is a variable expression in math?
a variable expression in math is a symbol that is in a sentence
How do you use the word math in a sentence?
That math test was really tough!
Is this sentence correct in grammar?
this is the sentence I prepared for a math competition, hours spent on complicated math problems every day.
What is a number called that when substituted into an open sentence it makes the sentence true?
A open sentence is an equation with one or more variables is an open sentence.
Is a expression is a math sentence with no?
it no 25
What is an addition sentence?
It is and math problem :))
