jazi1
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8x - (3x+7) = 13
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mrjoselson
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8x-3x-7=13
5x=20
x=4
lalaly
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5x=20
x=4
estudier
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In general, bring your unknowns (x's) to one side of the = and the knowns (integers) to the other side, which gives
8x - 3x = 13 + 7 or 5x = 20 and x = 4
Nick_Black
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8x-3x-7=13
5x=20
x=4
Acer
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8x-3x-7=13
5x=13+7
5x=20
x=4