1/3*X-[(X+4.5)-7.2]=0.9
3个回答
同时×3 X-3(X+4.5)+21.6=2.7
-2X-13.5+21.6=2.7
X=2.7
相关问题
解方程5x-2+1.8=3.6 7(x-1.2)=2.1 9.4x-0.4x=16.2 0.2x-0.4+0.5=3.7
1.6x-0.7x=4.5 9(x-7.3)=5.4
解方程(1)x(x+1)=-5(x+1)(2)4(2-x)2-9=0.(3)x2-4x-5=0(4)2x2+3=7x.
解下列方程31-(3x+7)=7x+14-5x 4x-1=3+4x 1.2x-1=0.9x+0.5 x-7=3X(19-
解方程 1.X/0.24=2.4 2.3X+2.7-0.9=7.89 3.9.2X+0.8X=108 4.2.5X+48
1.x^2-3x-18=0 2.x^2+3x-5=0 3.x^2-4x-7=0 4.3^2-6x-9=0 5.3x^2-
2(0.3x+4)-5(0.2x-7)=9
7/9*(x-0.4)=2/3 5/8x+1.8=4.3
解方程.96-5x=42 8x+0.4×1.2=2.4 7.2-5x=3.6 9x÷3=5.4 2.9x+1.28=7.
解方程.0.9*(9-X)=2.7 0.6X+20=26 8/(3X+1)=0.2 5X-2*0.3=4.4