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Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions:
z is multiplied by –3 and the result is subtracted from 13.
Answers (1)
z is multiplied by –3=-3z
z is multiplied by –3 and the result is subtracted from 13 can be expressed as 13-(3z)=13+3z
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