1-1/3(6x+9)=3(x+2/3)
2个回答
1-1/3(6x+9)=3(x+2/3)
1-2x-3=3x+2
-2x-3x=2-1+3
-5x=4
x=-0.8
相关问题
1/x(x+3)+1/(x+3)(x+6)+1/(x+6)(x+9)=3/2x+18
(X^3-1)/(X-1)= (9x^3-6X^2-5X+2)/(3X-1)=
6x/2x-3+9/3-2x=1
计算:1/(x+1) * [(x-3)/(x^2 + 6x + 9) + 2/(3+x)] - x/(x^2 - 9)
9 ÷ 3(2+1) 9 ÷ 3(2+1) = 9 ÷(3x2+3x1)= 9 ÷ (6+3) = 9÷9 = 1
观察算式.1^3=1X1=1,1^3+2^3=3X3=9,1^3+2^3+3^3=6X6=36,1^3+2^3+3^3+
解方程(1) 2 3x-1 -1= 3 6x-2 (2) 12 x 2 -9 + 2 3-x = 1 x+3 .
[3/4][[8/3]x-2(x-1)3]=[2/3](6x-9)
(1)2x/9-x² + 1/x-3 + 2/x²+6x+9
(1)(x-3)^2-2(x-3) (2)(x^2-1)^2+6(1-x^2)+9