adindalea777
A. a+11+ya-8=a+ya+3 b. 4b-7+6b+12=10b+5 c.2a+54b-5+3a-7b-8=5a+47b-13 d. 20a-12+12a+9= 32a-3 e.10a-15b+5c+12a+24-8c =22a-15b-3c+24 f. 6y-15y+4x+2y=4x-7y g. 12-4x+12-138y+267=-4x-138y+391 h. 12-bx+15-350x+175=-bx-350x+202 i. 31-8x-4-168x-336=-176x-309 maaf klo da yg slh
b. 4b-7+6b+12=10b+5
c.2a+54b-5+3a-7b-8=5a+47b-13
d. 20a-12+12a+9= 32a-3
e.10a-15b+5c+12a+24-8c =22a-15b-3c+24
f. 6y-15y+4x+2y=4x-7y
g. 12-4x+12-138y+267=-4x-138y+391
h. 12-bx+15-350x+175=-bx-350x+202
i. 31-8x-4-168x-336=-176x-309
maaf klo da yg slh