7/5 = 2/v+9

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Original equation: 7/5 = 2/(v + 9) Cross multipy to clear fractions: 7(v - 9) = (2)(5) Do multiplications: 7v - 63 = 10 Get rid of -63 on left side by adding 63 to both sides: 7v = 73 Divide both sides by 7 to solve for v: v = 73/7 = 10 and 3/7