Question

What is the value of the expression 8x – 10 when x = 5?​

Answer 1

Step-by-step explanation:

8x – 10

8x5 – 10

40– 10

30 ans

Answer 2

The value of the expression  8x – 10 when x = 5  is 30.

Given: The expression 8x – 10  and  x = 5.

To Find: The value of the expression.

Solution:

• We are given an expression with one unknown quantity and we need to find the value of the expression.
• We are also given a particular value of the unknown quantity and we are required to calculate the value of the expression by substituting the particular value of the unknown quantity in the given expression.

Coming to the numerical, we have

       8x – 10                                          ...(1)

We need to calculate the value of (1) when x = 5. So, substituting we get,

 ⇒  ( 8 × 5 ) - 10

 ⇒  40 - 10

 ⇒ 30

Hence, the value of the expression  8x – 10 when x = 5  is 30.

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