14x-x+8=47
13x-39=0
x=39/13x=3
(x-7)/4=380
x/4-381.75=0
x=381.75*4x=1527
7905-(212y+88y)=105
7800-300y=0
y=7800/300y=26
14x-x+8=47
13x-39=0
x=39/13
x=3
(x-7)/4=380
x/4-381.75=0
x=381.75*4
x=1527
7905-(212y+88y)=105
7800-300y=0
y=7800/300
y=26