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Set it up and follow the steps:
6f - 15 = 3 (then add 15 to each side to isolate the f's from the known numbers)
6f = 18 (then divide both sides by 6 to solve for f)
f = 3
prove by substituting 3 for f:
6(3) - 15 = 3
18 - 15 = 3
3 = 3
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∙ 14y ago
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