2(x-2)+3(4x-1)=9(x-1)+7
6个回答
2(x-2)+3(4x-1)=9(x-1)+7
2x-4+12x-3=9x-9+7
14x-7=9x-2
14x-9x=7-2
5x=5
x=1
相关问题
2(x-2)+2=x+1 2(x-2)-3(4x-)=9(1-x) 7(2x-1)-3(4x-1)=4(3x+2)-1
(3x^2+9x+7)/(x+1)-(2x^2+4x-3)/(x-1)-(x^3+x+1)/(x^2-1)=
(3x^2+9x+7)/(x+1)-(2x^2+4x-3)/(x-1)-(x^3+x+1)/(x^2-1)=
1.2(x+1)>4 2.7x-9>9x+7
2-x/x²-9(1+2x-7/x²-4x+4)÷1/x+3
8x-3=9+5x.5x+2(3x-7)=9-4(2+x).[x−1/4−2x+16=1
方程:3(X+2)=4(X+1) 9*3-1.7X=13.4 7X-3X=2.042 5(X+3)=20 1.4X-1.
1/1*2x+1/2*3x+1/3*4x+1/4*5x+1/6*7x+1/7*8x+1/8*9x+1/9*10x=1/1
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
2(x-20)+3(4x-1)=9(x-1)+7