Question

Mario started with the expression 2(x+ y) + 5(x+7y), applied several steps and simplified the

expression to 7x+ 37y.
Mario used problem solving to obtain 7x+ 37y. Write the steps using math properties to show
how he got his answer.

Answer 1

`8x + 32y`

Explanation:

Given

`2(x+ y) + 5(x+7y)`

Required

Expand and identify the steps

`2(x+ y) + 5(x+7y)`

Apply distributive property

`3x + 2y+ 5x + 35y`

Apply associative property

`3x + 5x + 2y+ 35y`

`8x + 32y`