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Chapter 1: Q1. (page 39)

1. Solve 2d+5=8d+2. Check the solution.

Short Answer

Expert verified

Thesolution of dis 0.5.

Step by step solution

01

- State the definition of a variable

A variable is a term that is used to represent an unknown value.

02

- Solve the equation

Here, the equation is:

2d+5=8d+2

Then, to simplify this equation use subtraction property,

2d+5=8d+22d+5鈭�2=8d+2鈭�22d+3鈭�2d=8d鈭�2d3=6dd=0.5

Here, the value of dis 0.5.

03

- Check the solution

For d=0.5.

Check:

2d+5=8d+22脳0.5+5=8脳0.5+21+5=4+26=6

Thus, it is correct.

04

- State the conclusion

Therefore, the solution of d is 0.5.

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