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Njeri scored a total of 171 marks in mathematics, Kiswahili and English tests. The score in mathematics was twice that of Kiswahili
and that of English was three marks more than that of Kiswahili. If the score for English was x, which one of the equations below should
be used to find the value of x?
A. 4x-9=171
B. 4x+3=171
C. 4x-6=171
D. 4x+9=171