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Chapter 3: Q23. (page 122)

Write the verbal sentence as an equation. Then solve the equation.

鈥淔ive minus the product of 2 and a number is 7鈥�.

Short Answer

Expert verified

The solution of the equation 5-2a=7 is a=-1.

Step by step solution

01

Step 1. Given information.

The given sentence is:

Five minus the product of 2 and a number is 7.

02

Step 2. Write the equation.

Consider the number which is the product of 2 be a.

so, the equation is 5-2a=7.

03

Step 3. Solve the equation.

To solve this equation, find the value of a.

Therefore,

5鈭�2a=7鈭�2a=7鈭�5鈭�2a=2a=2鈭�2

So, a=-15鈭�2a=7鈭�2a=7鈭�5鈭�2a=2a=2鈭�2

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