计算(4a-b)-(4a-b)÷2+?=(6a+b)

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计算(4a-b)-(4a-b)÷2+?=(6a+b)计算(4a-b)-(4a-b)÷2+?=(6a+b)计算(4a-b)-(4a-b)÷2+?=(6a+b)?=(6a+b)-(4a-b)+(4a-b)

计算(4a-b)-(4a-b)÷2+?=(6a+b)
计算(4a-b)-(4a-b)÷2+?=(6a+b)

计算(4a-b)-(4a-b)÷2+?=(6a+b)
? = (6a+b) - (4a-b) + (4a-b)/2
= 6a + b - 4a + b + 4a/2 - b/2
= 6a - 4a + 4a/2 + b + b - b/2
= 4a + 3b/2