# Solving Problems Using Systems Of Equations Let's explore a few more methods for solving systems of equations. Let's say I have the equation, 3x plus 4y is equal to 2.5.

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We'll go back to our same example to illustrate this.

Find the ordered pair for which From the graph, we can see that the solution to the system is .

The left-hand side-- you're just left with the 3x; these cancel out-- is equal to-- let's see, this is \$1.79 minus \$0.35. And 3 goes into \$1.44, I think it goes-- well, 3 goes into \$1.44, it goes into 1 zero times.

If we subtract 0.35 from both sides, what do we get?

And I have another equation, 5x minus 4y is equal to 25.5.

## Comments Solving Problems Using Systems Of Equations

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