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Chapter 2: Q50. (page 95)

If 鈭�5c+6=鈭�69, what is the value of 6c鈭�15?

Short Answer

Expert verified

The required value is 75.

Step by step solution

01

Step 1. Isolate the variable.

鈭�5c+6=鈭�69鈭�5c=鈭�69鈭�6鈭�5c=鈭�75

02

Step 2. Solve for c.

c=鈭�75鈭�5c=15

Hence, the value of c=15.

03

Step 3. Put the value of c into the given expression.

Put c=15into 6c鈭�15.

6(15)鈭�15=90鈭�15=75

The value of the expression is 75.

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