August 2018 1 145 Report
Ada pertanyaan nii :)
Harus jelas ya caranya

kurangkan
1. 14x + 7y-9 dengan 5y -4x+7
2. 3a-5b+2 oleh 5a+4-7b
3. 10x - 8y -4 dari -5x-3y+7

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