(6x+5)(6x-5)-(6x-1)(6x-1)=-20
2个回答
(6x+5)(6x-5)-(6x-1)(6x-1)=-20
36x²-25-36x²+12x-1= -20
12x-26= -20
12x=6
x=0.5
相关问题
5.6x-1.6x=(5.6-1.6).
①1/4x-4x=1/2 ②50%x-5/6=5/12 ③6x+4(20-x)
解方程5/6x+12=20+1/6x
(x/6+x/6+20):(x-x/6-x/6-20)=7:5具体怎么解?
(20+x)乘6=20-x乘(6乘1.5)解
(6x-1/5)-1=5x-7/6
(1/5x+6):(4/5x-6)=1:
1&6=1X2X3X4X5,6&6=6X7X8X9X10.据此求:(2&5)÷(6&5)
(2-6x/3)-(5-6x/6)+3x=(1+5x/2)
(4)1/6(3x-6)=2/5x-3 (5)3(x-7)+5(x-4)=15 (6)4x-3(20-x)=-4