Question

me ajudem ??????????????

Answer 1

A)9x-5+x
10x-5
B)7x+2-10x-x+4
-4x+6
C)x^2-1,5x+2-x^2+2,3x-6
0,8x-4
D)x-2y+2x+2z-y-y-x+3z
2x-4y+5z
E)1/2a-c-1/2c+3/4a
2a/4-4c/4-4c/4+3a/4
5a/4-8c/4
1,25a-2c