(3m – 9) -- (-10m – 9)

-13m - 18

Step-by-step explanation:

(3m - 9) -- (-10m - 9 )

Subtract the 3m to the -10m, and add the 9's together.

the answer is 13m

Step-by-step explanation:

remove parenthesis : 3m – 9 + 10m – 9

simplify : 3m - 9 +10 +9 = 13m

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dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.