Pick the easiest variable to remove from two pairs of equations. In the example above, the term in Equation 2 is solo ( −ynegative y ), making it a great candidate for elimination. : Combine (1) and (2) by multiplying Equation 2 by 4. Pair B : Combine (2) and (3) by multiplying Equation 2 by 2. 3. Reduce to Two Variables Once you eliminate

A typical problem from a "math ass" (assignment) might look like this:

2)2x−y+3z=42 close paren space 2 x minus y plus 3 z equals 4

Plug those values back into any of the original equations to find

Learning to give a logical explanation for these mathematical relationships is vital. It’s not just about finding