1.

17) Simplify-o,-r)--(2x + y)-(6x + 5y)}

Answer»

(y-x)-(1/2){(2x+y)-(6x+5y)}

(y-x)-(1/2){2x+y-6x-5y}

(y-x)-(1/2){-4x-4y}

(y-x)+(2)(x+y)

=y-x+2x+2y

=x+3y



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