帮我解几道比例和方程!
问题描述:
帮我解几道比例和方程!
1.2.05+7x=8.35 2.(3/5-1/3)x=2/5 3.3x-3/4x=9 4.12x-8+2/3 5.4/3x3/5=19/15 6.x-3/4x=1/8
答
1.2.05+7x=8.357x=8.35-2.057x=6.3x=0.9 2.(3/5-1/3)x=2/5 4/15x=2/54x=6x=1.53.3x-3/4x=9 12x-3x=369x=36x=44.12x-8=2/312x=26/3x=13/185.4/3x3/5=19/15 6.x-3/4x=1/81/4x=1/8x=1/2