Question

Translate into an equation and solve it:
seven subtracted from four times a number
is equal to twenty one​

Answer 1

Answer:

x = 7

Explanation:

4x - 7 = 21

4x = 21 + 7 ( bring it to the other side to change the sign - in one word-  transposition)

So, 4x = 28

       x = 28 /4 ( multiplication transposes to division) ( 4x = 4*x )

       x = 7.

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