化简:(请将化简的过程写详细)10a+6b+7a+3b-10a 4xy-2y+3x-xy 7×2-7xy+1 4-3y+1+6y5b-7c +9c+4z-3z 3ab+3c-6+8ab-7c3(x-2)-3x+12 (x+5y)-(3y-4x)9b-4c+3(c-2b) 2(2k-1)-(2k+1)

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化简:(请将化简的过程写详细)10a+6b+7a+3b-10a 4xy-2y+3x-xy 7×2-7xy+1 4-3y+1+6y5b-7c +9c+4z-3z 3ab+3c-6+8ab-7c3(x-2)-3x+12 (x+5y)-(3y-4x)9b-4c+3(c-2b) 2(2k-1)-(2k+1)
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化简:(请将化简的过程写详细)10a+6b+7a+3b-10a 4xy-2y+3x-xy 7×2-7xy+1 4-3y+1+6y5b-7c +9c+4z-3z 3ab+3c-6+8ab-7c3(x-2)-3x+12 (x+5y)-(3y-4x)9b-4c+3(c-2b) 2(2k-1)-(2k+1)
化简:(请将化简的过程写详细)
10a+6b+7a+3b-10a 4xy-2y+3x-xy
7×2-7xy+1 4-3y+1+6y
5b-7c +9c+4z-3z 3ab+3c-6+8ab-7c
3(x-2)-3x+12 (x+5y)-(3y-4x)
9b-4c+3(c-2b) 2(2k-1)-(2k+1)

化简:(请将化简的过程写详细)10a+6b+7a+3b-10a 4xy-2y+3x-xy 7×2-7xy+1 4-3y+1+6y5b-7c +9c+4z-3z 3ab+3c-6+8ab-7c3(x-2)-3x+12 (x+5y)-(3y-4x)9b-4c+3(c-2b) 2(2k-1)-(2k+1)

10a+6b+7a+3b--10a=7a+9b.

4xy--2y+3x--xy=3xy--2y+3x.

7X2--7xy+1=14--7xy+1
                 =16--7xy.

4--3y+1+6y=5+3y.

5b--7c+9c+4z--3z=5b+2c+z.

3ab+3c--6+8ab--7c=11ab--4c--6.

3(x--2)--3x+12=3x--6--3x+12=6.

(x+5y)--(3y--4x)=x+5y--6y+4x
                        =5x--y.

9b--4c+3(c--2b)=9b--4c+3c--6b
                        =3b--c.

2(2k--1)--(2k+1)=4k--2--2k--1
                        =2k--3.