解:2(2x十2)十4(3x一3)=7x一5
4x十4十12x一12=7x一5
4x十12x一7x=一5一4十12
16x一7x=一9十12
9x=3
x=1/3
(2x+2)/4+(3x-3)/2=(7x-5)/8
2(2x+2)+4(3x-3)=7x-5
4x+4+12x-12=7x-5
16x-7x=-5+8
9x=3
x=1/3