Question

Mrs. Jones has a local bakery. Last week this expression shows how many peanut butter cupcakes she baked. 5 (2x -4) + 3(3 + 4x) Part A: What is the simplified form of the expression above? Part B: If x = 6, how many cupcakes did Mrs. Jones bake last week?

Answer 1

A.
`22x-11`

B.
`121` cupcakes

Explanation:

Part A:

The simplified form of the expression is

`5(2x-4)+3(3+4x)`

`(10x-20)+(9+12x)`

`(10x+12x)+(9-20)`

`22x-11`

Part B:

Put
`x=6` in the above simplified equation to get the number of cupcakes Mrs. Jones bake last week

`22x-11`

`22(6)-11`

`132-11`

`121` cupcakes