1/4(a+b)？ 0? 5-6(a-b)+3/4(a+b)？ 0? 5+6 (Arabic-Arabic)

5 (A-B)? 0? 5-3 (A-B)? 0? 5-7(a-b)-(a-b)？ 0? 5+7 (Arabic-Arabic)

1/2a？ 0? 5- 1/4b+3/2a？ 0? 5-3/4b-a？ 0? five

-5yx？ 0? 5+4xy？ 0? 5-2xy+6x？ 0? 5y+2xy+5

16m+25-40m+34m

(4+2x)+(2x-x)

4a+8a-(-6a)+3a-2b

8a+4(a+2)

(2n-3)+(2n+3)-(2n-3)

7x-(5x-5y)-y

3a-4b+4a-3b

7a+3b-(4a+5b)-3

3ab-4ab+8ab-7ab+ab

(x-y)-2(x-y)

. 16m+25-40m+34m

. (4+2x)+(2x-x)

4a+8a-(-6a)+3a-2b

. 8a+4(a+2)

(2n-3)+(2n+3)-(2n-3)

7x-(5x-5y)-y

3a-4b+4a-3b

. 7a+3b-(4a+5b)-3

3ab-4ab+8ab-7ab+ab

. (x-y)-2(x-y)

x-[y-2x-(x+y)]

3ab-4ab+8ab-7ab+ab

7x-(5x-5y)-y

23 a3 BC 2- 15 ab2c+8 ABC-24 a3 BC 2-8 ABC

-7x2+6x+ 13x2-4x-5x2

2y+(-2y+5)-(3y+2)

(2x2-3xy+4y2)+(x2+2xy-3y2)

2a-(3a-2b+2)+(3a-4b- 1)

-6x2-7x2+ 15x2-2x2

2x-(x+3y)-(-x-y)-(x-y)

2x+2y-[3x-2(x-y)]

5-( 1-x)- 1-(x- 1)

10x2-xy。

x3-2x2y+4xy2+y3。

4x2-[7x2-5x-3( 1-2x+x2)]