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7x+12 = (x+3 )+ (x+4)
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7x+12 = (x+3 )+ (x+4)

User Qubital
by
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1 Answer

2 votes

Answer:

-1

Explanation:

7x+12=(x+3)+(x+4)

7x+12=2x+7

5x+12=7

5x=-5

x=-1

User Bitloner
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4.4k points
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