use the greatest common factor to find the least common multiple of 12 and 18. what is the least common multiple of 12 and 18?

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The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers