a.5a+4a=
b.2x+3x+10=
в.1.5+а+2.5а=
г.6у+8+6у=
д.7m+ m=
e.3/8n+ 5/8n+1\3n
--------------------------------
18x-3x+5x=
2y-9y=
1.2c-0.3c+5=
2a-15-a+6=
t+6.3t-2.1t=
5x-5+3x-4x
-a-a-a-a=
-2n-2n-2n
1/3x+1/3x+1/3x-
Упростить.
Помогите пожалуйсто:** 

a.5a+4a=9ab.2x+3x+10=5x+10в.1.5+а+2.5а=1.5+3.5aг.6у+8+6у=12y+8д.7m+ m=8me.3/8n+ 5/8n+1\3n=1(целая)1\3n

18x-3x+5x=20x2y-9y=-7y1.2c-0.3c+5=0.9c+52a-15-a+6=a-9t+6.3t-2.1t=5.2t5x-5+3x-4x=4x-5-a-a-a-a=-4a-2n-2n-2n=-6n1/3x+1/3x+1/3x=x