Question

Write an equivalent expression for 4(3a+7)+3 (2a+5) if a=5, is the the solution to both expressions the same

Answer 1

Alternative
4(3*5+7)+3(2*5+5)=
4(22)+3(15)=
(4*22)+(3*15)=
88+45=133

Answer 2

For this case we have the following expression:

`4 (3a + 7) +3 (2a + 5)`

We must evaluate the expression for the following value:

`a = 5`

We have then:

`4 (3 (5) +7) +3 (2 (5) +5)`

Then, rewriting the expression we have:

`4 (15 + 7) +3 (10 + 5)\\4 (22) +3 (15)\\88 + 45\\133`

Answer:

The expression for a = 5 is given by:

`4 (3a + 7) +3 (2a + 5) = 133`