题目信息
What is the value of x ?
A:Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B:Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C:BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D:EACH statement ALONE is sufficient.
E:Statements (1) and (2) TOGETHER are NOT sufficient.
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已选答案：
正确答案：
A:Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Algebra Exponents
Determine the value of x.
If 4x + 1 + 4x = 320, then 4x(4 + 1) = 320, from which 4x = 64 and x = 3; SUFFICIENT. If x2 = 9, then x = −3 or x = 3; NOT sufficient.
The correct answer is A;statement 1 alone is sufficient.
Determine the value of x.
If 4x + 1 + 4x = 320, then 4x(4 + 1) = 320, from which 4x = 64 and x = 3; SUFFICIENT. If x2 = 9, then x = −3 or x = 3; NOT sufficient.
The correct answer is A;statement 1 alone is sufficient.
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