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)]