Question

Seven subtracted from seven times a number is 147

Answer 1

Answer: x = -20

• Find x

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`7-7(x)-7=147-7\\-7(x)=140\\= (-7x)/(-7)=(140)/(-7)\\=-20\\= x = -20`

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Answer Explained:

Using phrases such as subtracted, times, a number, we make an equation using the integers in the equation, and make a variable for the unknown number, x. We then subtracted 7 from both sides, and for the division, substituted 7 as absolute number, |-7|.

Therefore,

7 - 7 × -20 = 147