Question

Please help me I can’t figure it out

Answer 1

• 20 is the value of expression when a is equal to 3 .

Explanation:

In the question we're given with an expression that is 32 - 4a , value of a is 3 . And we are asked to evaluate the expression for a = 3 .

Solution : -

`\longmapsto \: 32 - 4a`

Step 1 : Substituting value of a in given expression :

`\longmapsto \:32 - 4(3)`

Step 2 : Multiplying 4 with 3 :

`\longmapsto \:32 - 12`

Step 3 : Subtracting 12 from 32 :

`\longmapsto \: \red{\boxed{ \frak{20}}}`

• Therefore , value of expression for 3 is 20 .

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Answer 2

20

Explanation:

To evaluate the expression for a= 3, replace (or 'substitute') every 'a' you see with a '3' in the expression.

Given expression: 32 -4a

When a= 3,

32 -4a

= 32 -4(3)

= 32 -12

= 20