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Assuming you meant "equation" (an equation is one or more terms on each side of an equals sign that have the same value, such as x+7=12), you have to get the variable alone on one side, by "undoing" things until it is alone. Remember, what you do to one side of an equation, you must do to the other side. So:
x+7=12
-7 -7
x=5
Since 12 was 7 more than X, you subtract 7 from both sides, negating the 7 on the left, and leaving you with x=5.
What else can I help you with?
What is find the numerical variable of an expression?
It is a poorly worded question. Any number in an expression can be a numerical variable.
How do you find the value of an algebraic expression?
Take the value of each variable in the expression and replace the variable by its value. Then do the math!
Is 4d a numerical expression or variable expression?
A variable expression.
What does it mean to evalutate the expression?
Replace each variable in the expression by its value and then find the value of the expression.
What is 0.2x plus 27 82?
It is an expression with a variable, x.It is an expression with a variable, x.It is an expression with a variable, x.It is an expression with a variable, x.
What is expression with variable?
It is a variable expression.
How do you find a specific numerical value for an algebraic expression?
you have to deduce the variable and evaluate the expression.
What is to find the value of a numerical or algebraic expression?
to solve for the variable
How do you find the dimensions of a polynomial?
It is the highest power of the variable in the expression.
What is a variable expression in math?
a variable expression in math is a symbol that is in a sentence
What is an expression containing at least one variable called?
Variable expression.
What is the variable in the expression 7s -5?
12
