Learn the techniques to craft the perfect equation using the given slope and a single point on the line. Finding the slope by calculating the deltas of x and y. Understanding slopes by plotting …

Solve using an addition method: 21x +3y −2x − 34y = 2 = −3. Solve using a Cramer's rule: −23x−0.4y −2x+ y = 2/3 = −3/7. Find more worked-out examples in our database of solved …

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First, I need to tell you about determinants. We'll be using these to solve systems. Say you've got a 2 x 2: We can make something called a "coefficient matrix": A matrix is just a grid of …

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