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Find a number that is 15 more than 4 times its opposite

Find a number that is 15 more than 4 times its opposite
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Find a number that is 15 more than 4 times its opposite

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User Rohit Lingayat
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1 Answer

4 votes
x - the number


x=4\cdot(-x)+15\\ x=-4x+15\\ x+4x=15\\ 5x=15\\ x=3
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User Steffen Frank
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