Question

3(2a+6) what is the value of this expression if a = 4

Answer 1

3( 2a + 6) plug in 4 for a
3( 2(4) + 6)
3( 8 + 6)
3( 14 )
= 42

Answer 2

The answer is:

42

Work/explanation:

First, use the distributive property and distribute 3 through the parentheses:

`\sf{3(2a+6)}`

`\sf{6a+18}`

Now we can plug in 4 for a:

`\sf{6(4)+18}`

`\sf{24+18}`

`\bf{42}`

Therefore, the answer is 42.