Lesson goal: Solve Equations

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Solving equations always comes up in many areas of math, so we've developed a function called solve that knows how to solve linear equations. Linear equations are equations where the exponents of the variables you want to solve for are always one ($1$).

The solve function works like this:

Move the mouse over a dotted box for more information.

Now you try. Try solving a linear equation. After that, try solving two equations with two unknowns (that is a "system of equations").

Type your code here:

See your results here:

This example will solve $4x-3y=-3$ for $x$. You might also try:
  • Solving $5x+3y=6$ and $2x-4y=5$ for $x$ and $y$.
  • Solving $2a+5b=3$ and $2a+b=9$ for $a$ and $b$.
  • $u+4u=56$ for $u$.
Show a friend, family member, or teacher what you've done!

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Does your code work? Want to run it on your iPhone?

Here's your code:

  1. Use [Control]-[C] (Windows) or [⌘]-[C] (MacOS) to copy your code.

  2. Paste it using [Control]-[V] (Windows) or [⌘]-[V] (MacOS) into this page

  3. Then click the "Use on iPhone" button that you'll see.