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29 September, 12:09

The difference of a number times

7

and

5

is

8

.

Use the variable

x

for the unknown number

+3
Answers (1)
  1. 29 September, 12:26
    0
    7 x - 5 = 8

    7 x = 8 + 5

    7 x = 13

    x = 13/7

    7 (13/7) - 5 = 8

    91/7 - 35/7 = 56/7

    56/7 = 56/7 = 8
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