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Q: What is the variable for 8a-9 equals 7a-6?

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It is a quadratic equation with one unknown variable, x which has no real roots.

d = r t t = d / r

A mathematical expression in its' most simplistic form, merely assigns a value to a variable. Don't confuse an expression with an equation. An equation requires a solution. An expression cannot be "solved". It only allows you to determine the value of a variable. This is the expression in words "x is equal to 3" (X is the variable which is equal to the constant number 3) This is the expression in numbers "x=3" The expression in words "y is equal to 6" (Y is the variable which is equal to the constant number 6) The expression in numbers is "y=6" I hope you understand now.

Add the two equations together. This will give you a single equation in one variable. Solve this - it should give you two solutions. Then replace the corresponding variable for each of the solutions in any of the original equations.

4 multiplyed by a number (Variable) plus 5 multiplyed by a number (V) equals 15 4v + 5v = 15 15/5 = v 15/4 = impossibility >_< Sorry :~) v = ImPoSiBiLiTy

Related questions

7a2(a + 1)(a - 1)(a2 + 1)

In the right circumstances any variable.

k is the variable.

"Wat" is the variable.

This answer applies to programming languages in general. The equals sign is used for assignment. For example, the code "$variable = 1" assigns the value of 1 to the variable $variable. If you want to test whether values are the same (equality) the double equals sign is used. For example, when you want to verify that $variable has been assigned the value of 1 you would use: $variable == 1

They define a variable by saying n equals some value.

15x = 60 The variable is x.

6 x 34?

The variable is x.

The variable c

This is an instruction to increment the value of a variable by 1 (in this case, either the variable count or the variable total).

Sort of. Once it is set to 100, it is no longer a variable.

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