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Q: What is the simultaneous use of two or more tonal centers?
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Use the word simutaneous in a sentence?

I can give you several sentences.There was a simultaneous flash of light and thunder.The two gunshots were nearly simultaneous.Their simultaneous shout of warning went unheard.


When does a system of linear equations in two variables have a unique or one solution?

simultaneous equations


What is y equals 2x-1 and y equals 2x plus 1?

They are two equations in two unknown variables (x and y), which are inconsistent. That is to say, there is no simultaneous solution. An alternative approach is to say that they are the equations of two lines in the Cartesian plane. The lines are parallel and so they do not meet indicating that there is no simultaneous solution.


How cam you determine what two equations' solution is?

Several methods exist. For example: solve one equation for one variable, replace that variable in the other equation. (Two simultaneous equations will often have two variables each.)


Is there simultaneous equation which cant be solved?

By definition, there cannot be a simultaneous equation that cannot be solved, there must be a set of simultaneous equations. It is important to realise that simultaneous equations need not be linear.It is simple to devise a pair of linear equations that are inconsistent:x + y = 1 and x + y = 2There is no solution. Graphically, the two lines are parallel.Another possibility isx + y = 1 and 2x + 2y = 2In this case there are an infinite number of solutions. Graphically, the two lines are coincidet, so that every point on the common line is a solution. There is, therefore, no unique solution.Yet another situation can arise when the domain of the equations is restricted.For example,x2 + y2 = -1 where x and y are real along with any other equation in x and y.