What is the value of X in equation 5x – 7 = 2x – 4x + 14?
A. 3
B. 5
C. 7
D. 14
Correct Answer: A (3)
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A. 3
B. 5
C. 7
D. 14
A. Sound
B. Depth
C. Distance
D. Frequency
A. Sea water is still while river water is running
B. Salinity of sea water is more than that of river water
C. Density of Sea Water is Least
D. Density of sea water is more than that of river
A. c = (X – ab)/a²b
B. c = (X – ab)/a²c
C. c = X/ab – a
D. c = X – ab/a²b
A. c = X/a – b
B. c = (X + a)/ab
C. c = X/a + ab
D. c = (X – a)/ab
A. Electromagnetic waves
B. Mechanical waves
C. Seismological waves
D. Chemical reactions