Решите : 3/4 (1/2x+2/3)=3x+21/4

3/4(1/2х+2/3)=3х+2 1/43/4*1/2х+3/4*2/3=3х+2 1/43/8х+1/2=3х+2 1/43/8х-3х=2 1/4-1/23/8х-2 8/8х=1 5/4-2/4-2 5/8х=1 3/4х=1 3/4:(-2 5/8)х=-7/4:21/8х=-7/4*8/21х=-1*2/3х=-2/3