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What is the value of x 21, 18, 10 or 29?

What is the value of x 21, 18, 10 or 29?-example-1

2 Answers

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7x + 11 = 10x - 43
7x - 10x = -43-11
-3x = -54
x = 18
User Digital Farmer
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18. Set the the two equations equal and solve.
User Shawnett
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