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➡ 2y - 3x - 2 - 5x + 3y - 5 ➡ dijabarkan
➡ ( -3x - 5x ) + ( 2y + 3y ) + ( -2 - 5 ) ➡ dikelompokkan
➡ -8x + 5x - 7 ➡ disederhanakan