Question

Translate each of the following statements into an equation, using x as the variable:
(a) 13 subtracted from twice a number gives 3.
(b) One fifth of a number is 5 less than that number.
(c) Two-third of number is 12.
(d) 9 added to twice a number gives 13.

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

(a) Let the variable number be ‘x’

Twice of that number = 2x

13 subtracted from twice of that number = 2x – 13

Equation: 2x – 13 = 3

(b) Let the variable number be ‘x’

One fifth of the number =

x

5 less than that number = x – 5

Equation:

x = x – 5

(c) Let the variable number be ‘x’

Two-third of number =

x

Equation:

x = 12

(d) Let the variable number be ‘x’

Twice of number = 2x

9 added to twice a number = 2x + 9

Equation: 2x + 9 = 13

(e) Let the variable number be ‘x’

One-third of number =

x

1 subtracted from one-third of number =

x – 1

Equation:

x – 1 = 1

Step-by-step explanation:

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