Simplify.9x - (7 - 2x)
A. 7x - 7
B. 9x - 9
C. 11x - 7
D. 11x + 7
Answer: C
Mathematics
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Solve the system. If there is an unlimited number of solutions, find one of them.x + y + z = 1x - y + 2z = -14x + 4y + 4z = 13
A. x = 4, y = 1, z = -4 B. x = -4, y = 4, z = 1 C. x = -4, y = 1, z = 4 D. Inconsistent
Mathematics
Determine the x- and y- intercepts for the graph defined by the given equation.x = 8
A. x-intercept is (8, 0) No y-intercept B. x-intercept is (0, 8) No y-intercept C. No x-intercept y-intercept is (0, 8) D. No x-intercept y-intercept is (8, 0)
Mathematics
Subtract.6,859
A. 6,340 B. 6,346 C. 346 D. 6,320
Mathematics
Find the sum of the arithmetic sequence.(-6) + (-1) + 4 + 9 + ... + 39
A. 165 B. 160 C. 330 D. 170
Mathematics