How to Solve Two Variable Equation?

Write both equations in standard form: (ax + by = c) and (dx + ey = f)

Choose a method: substitution, elimination, or graphing

For substitution:

Solve one equation for one variable

Substitute that expression into the other equation

Solve for the remaining variable

Substitute back to find the second variable

For elimination:

Multiply one or both equations so one variable has opposite coefficients

Add or subtract the equations to eliminate one variable

Solve for the remaining variable

Substitute back to find the second variable

For graphing:

Rewrite both equations in slope-intercept form if possible

Graph both lines

Identify the point where they intersect

Check the solution by substituting both values into both equations

Write the solution as an ordered pair ((x, y))

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