Question 68

Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement:

z is multiplied by - 3 and the result is subtracted from 13.

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Solution

z multiplied by - 3 can be expressed as (-3) $\times$ z =-3z

Since this result is subtracted from 13, we can write it as 13 - (-3) z = 13 + 3z

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