If they are inconsistent and you try to solve them you will get something like: 5=0, which of course isn't true so... you can't solve them
You'd need another equation to sub in
That depends on what type of equation it is because it could be quadratic, simultaneous, linear, straight line or even differential
solve it
If you solve such an equation for "y", you get an equation in the slope-intercept form.
You can write an equivalent equation from a selected equation in the system of equations to isolate a variable. You can then take that variable and substitute it into the other equations. Then you will have a system of equations with one less equation and one less variable and it will be simpler to solve.
solve system equation using addition method 3x-y=9 2x+y=6
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
Sure. You can always 'solve for' a variable, and if it happens to be the only variable in the equation, than that's how you solve the equation.
you don't answer an equation, you solve an equation
If they are inconsistent and you try to solve them you will get something like: 5=0, which of course isn't true so... you can't solve them
You'd need another equation to sub in
That depends on what type of equation it is because it could be quadratic, simultaneous, linear, straight line or even differential
solve it
If you solve such an equation for "y", you get an equation in the slope-intercept form.
The first step is to solve one of the equations for one of the variables. This is then substituted into the other equation or equations.
It is not an equation if it does not have an equals sign. You could simplify it but not solve it.