Question

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

Answer 1

Answer:

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

Answer:

13y - 55

Step-by-step explanation:

Given

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

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

= 13y - 55