כד,12 -2(-x+5y) +3(2x – 6y) ? C. 4x – 28y

Question

כד,12
-2(-x+5y) +3(2x – 6y) ?
C. 4x – 28y

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Kylie 1 day 2021-09-10T07:21:28+00:00 1 Answer 0

Answers ( )

    0
    2021-09-10T07:23:13+00:00

    Step-by-step explanation:

    -2(-x+5y)+3(2x-6y)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-2)(-x)+(-2)(5y)+(3)(2x)+(3)(-6y)\\\\=2x-10y+6x-18y\qquad\text{combine like terms}\\\\=(2x+6x)+(-10y-18y)\\\\=8x-28y

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45:7+7-4:2-5:5*4+35:2 =? ( )