Question

Thirty less than four times a number is fifty

Answer 1

4x-30= 50

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Answer 2

Answer:

The number is 20

Step-by-step explanation:

Let the number be x

Four times the number means = 4x

30 less than the number is 50 means = 4x - 30 = 50

Solve for x :

      4x - 30 = 50

      4x - 30 + 30 = 50 + 30           [ adding 30 on both sides ]

                 4x = 80                       [ - 30 + 30 = 0 ]

                   x = 20                       [ dividing by 4 on both sides ]