Question

7(3y-5) -2 (10+4y)
-distributive property-

Answer 1

When using the distributive property, we can operate parenthesis:

`a*(b+c)=ab + ac`

So, in our case:

`7(3y-5) -2(10+4y)`

`7*3y+7*(-5) - 2*10-2*4y`

`21y -35 - 20 - 8y`

`=13y - 55`

So now we know the result is 13y - 55

Answer 2

13y - 55

Explanation:

Given

7(3y - 5) - 2(10 + 4y) ← distribute both parenthesis

= 21y - 35 - 20 - 8y ← collect like terms

= 13y - 55