Respuesta :

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

Answer:

When using the distributive property, we can operate parenthesis:

[tex]a*(b+c)=ab + ac[/tex]

So, in our case:

[tex]7(3y-5) -2(10+4y)[/tex]

[tex]7*3y+7*(-5) - 2*10-2*4y[/tex]

[tex]21y -35 - 20 - 8y[/tex]

[tex]=13y - 55[/tex]

So now we know the result is 13y - 55

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