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.
z multiplied by - 3 can be expressed as (-3) ×z =-3z
Since this result is subtracted from 13, we can write it as 13 - (-3) z = 13 + 3z