Solving Algebraic Equations

Let's imagine that we had an equation like $4x + 3 = 12$ .

It might be interesting to know the value of $x$ .

"Solving" an algebraic equation is the process of determining what the unknown values are that "fit" into the equation.

Solving linear equations is a common topic in learning algebra, which makes it a bit more difficult to automatically check your working out. This question demonstrates how the BetaMath program is able to assess your algebraic working out.
Solving two simultaenous linear equations is a more advanced topic in algebra, but this question shows how the BetaMath program scales up to handle this too.

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