The equation with x about the number thought by Natasha is (x + 2.5) × 2 = 61
Let the number thought by Natasha be x. To formulate the equation, we will perform the same operations as done by Natasha. Forming the equation now -
(x + 2.5) × 2 = 61
Performing multiplication on Left Hand Side of the equation
2x + 5 = 61
Rewriting the equation
2x = 61 - 5
Performing subtraction on Right Hand Side of the equation
2x = 56
Rewriting the equation
x = 56/2
Performing division on Right Hand Side of the equation
x = 28
Thus, the equation is (x + 2.5) × 2 = 61 and the number thought by Natasha is 28.
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