To cross multiply, we multiply the numerator of one fraction by the denominator of the other fraction.
Starting with the equation:
4/(3x - 1) = 8/(5x + 6)
We cross multiply by multiplying 4 by (5x + 6) and 8 by (3x - 1):
4(5x + 6) = 8(3x - 1)
20x + 24 = 24x - 8
4 over 3x -1 = 8 over 5x + 6
cross multiply
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