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Chapter 2: Q. 80 (page 113)

For the equation 0.35x+2.1=3.85, how do you clear the decimal ?

Short Answer

Expert verified

To clear the decimal, multiply both the sides of the equation by 100.

Step by step solution

01

Step 1. Decimals given in the question can be written as a fraction,

0.35=35100

2.1=210100

3.85=385100

02

Step 2. Rewrite the equation.

Equation can be rewritten as,

35100x+210100=385100

03

Step 3. Find LCD of the fractions.

LCD =100

04

Step 4. Multiply the equation with LCD,

100(35100x+210100)=(385100)脳100

05

Step 5. Solve the equation,

35x+210=385

Hence, to remove the decimal multiply the equation by LCD100.

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