Add appropriate formula to keep the score unchanged A-B of a + B = A & # 178; - B & # 178; + a = a + 1 of C

Add appropriate formula to keep the score unchanged A-B of a + B = A & # 178; - B & # 178; + a = a + 1 of C

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A-B of a + B = A & # 178; - B & # 178; divided into (a-b) &# 178;
A of AC & # 178; + a = a of C + 1
X & # 178; + xy = x + y