Question

Evaluate 2d+3 when d = 8

Answer 1

2d+3
2(8)+3
Multiply 2 and 8
16+3
19
So the answer is 19

Answer 2

value of
`2d+3` when d=8 is 19.

Explanation:

Given the expression:
`2d+3` ....[1]

Here, d is the variable.

when d = 8

Substitution property of equality states that:

if x =y then x can be substituted in y in any equation and y can be substituted in x.

Substitute d= 8 in [1] we have;

`2(8)+3`

⇒
`16+3`

⇒19

Therefore, the value of
`2d+3` when d=8 is 19