(2x-1)/2-(2x+5)/3=(6x-7)/6-1
3个回答
两边乘6
3(2x-1)-2(2x+5)=(6x-7)-6
6x-3-4x-10=6x-7-6
2x-13=6x-13
6x-2x=-13+13
4x=0
x=0
相关问题
因式分解:(1)x^2-7x+6(2)x^2-5x+6(3)x^2-5x-6(4)x^2-7x+8(5)x^2-7x+1
(1).6(x/3+x-1/2 ) (2).(7-3a)+(5a-6) (3).(x-3)-(5x+7)
1.-3-2x(-5) 2.8-(-6)x(-7+5) 3.7-24x(-1/3+5/6)
2/3+x-1/4=5/6 x-2/7+1/3=5/6
-a^2-11/2a-6 6x^2-7x-3 -6^2+7xy-5^/3y^2 x^2-5/6x-1
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2
①1=-(x-1)/2+(x-2)/6-(x+2)/3 ②2/7×(3x-7)=2-1.5x
(1).3x+2y-6y-x?(2).7x+(3x-5x)?(3).1/2(6-4x)-1/3(3-6x)?
-3x-6=-6 3x-5=6x+7 4(2x-1)=4-2(x-6)
1-1/(x2+7x+6)=(x2-5x+5)/(x 2-5x+6)