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Can you solve an variable in an equation?
You may want to be a little more specific about what your question is asking....... you can solve a variable in an equation or expression. For example: 1+2=y just remember, you arnt necessarily "solving" a variable, but I guess you could say that considering a variable can change continuously. Be sure to consider that if you do "solve" a variable you end up with a constant ( a never-changing number) therefore, it is no longer a variable, but just an answer. Hope that helped! :-)
What number when substituded for the variable in an equation makes the equation true?
you have to solve the actual equation in order to answer this about your variable
What should be added to both sides of this equation to solve for the variable 76-43 plus x?
Without an equality sign the given expression can't be considered to be an equation.
When using the substitution to solve nonlinear system of equations you should first see if you can one variable if you can one variable in one of the equation in the system?
The general idea is to solve one of the equations for one variable - in terms of the other variable or variables. Then you can substitute the entire expression into another equation or other equations; as a result, if it works you should end up having one less equation, with one less variable.
Can a linear expression have a squared variable?
No, if there is a sqaured variable, the equation is not linear.
