Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number.If 3 times a number is added to -7, the result is equal to 10 times the number. Find the number.
A. 3x + (-7) = 10x; -1
B. 10(3x - 7) = -7; -1
C. 4x + (-7) = 10x; 1
D. 13x - 10x = 7; 1
Answer: A
Mathematics
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