Question

[5x-9y] - [7x+y]=? *​

Answer 1

[5x-9y] - [7x+y]

$\huge{\underline{\underline{\mathrm{\red{AnswEr}}}}}$

answer = - 2x - 10y

step by step explanation :

$\huge\underbrace\purple{\dag DisTribuTe\dag}$

[5x-9y]-1(7x+y)

[5x-9y]-7x - y

$\huge\bold\blue{Eliminate\redundant\parentheses}$

[5x-9y] - 7x - y

5x−9y −7x−y

$\huge\bold{Combine\like\terms}$

5x - 9y - 7x -y

-2x - 9y - y

$\huge\underbrace\purple{\dag combine\like\terms\dag}$

-2x - 9y -y

-2x - 10y