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Mathematics 7 Online
OpenStudy (anonymous):

Simplify each expression 5x - 3y - 2x + 3y 8x - 7y - (3 - 6y) 3(r - 10s) - 4(7s + 2r) 2(4z - 2x + y) - 4 (5z + x - y)

OpenStudy (saifoo.khan):

Add like terms in each. 5x - 3y - 2x + 3y 3x

OpenStudy (anonymous):

first 3x 2nd 8x-y-3 3rd 3r-30s-28s-8r and -5r-58s last -12z-8x-2y

OpenStudy (saifoo.khan):

8x - 7y - (3 - 6y) 8x - 7y -3 +6y 8x -y - 3

OpenStudy (saifoo.khan):

Rest are those!

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