October 2018 1 32 Report
Kurangkanlah :
a.7a + 14 dari 9a +12
b. 2y + 15x - 18 dari 11y - 17x + 2x
c.-5 (4x -2y + 8 ) dari 4 (7x + 6y - 5)

a. 12 + 2 (4x -3)
b. a (a+3b) + 2a (4a +5b)

sederhanakanlah :
a.18x - 5 (x - 3y)
b. 12 + 2 (4x -3)
c. a (a+3b) + 2a (4a+5b )
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