7x-3x+59=29
问题描述：
7x-3x+59=29
答
x/2-x/5=90 3x/10=90 x=300 (7x-3x+59)/3=29 4x=87-59 x=7 3.4-2(x+1.2)=0.6 x+1.2=1.4 x=0.2 x÷2-x÷5=90 5x
7x-3x+59=29
x/2-x/5=90 3x/10=90 x=300 (7x-3x+59)/3=29 4x=87-59 x=7 3.4-2(x+1.2)=0.6 x+1.2=1.4 x=0.2 x÷2-x÷5=90 5x