4.2-0.8x=2.5x-2.4
1个回答
4.2+2.4=2.5x+0.8x
3.3x=6.6
x=2
相关问题
8x2-4x+5=0的解8X平方8x^2-4x+5=0
(1)1.5X-2.4=2.4 (2)0..4(X/5+4)=1.8
(4)2x平方-9x+8=0 (5)(2x-5)平方-(x+4)平方=0 (6)(x+1)(x+2)=2x+4
2x-0.8×2.6=3.08-2x 2.4×0.2x=0.5x-2.4 5(0.2x-2.5)=2.1x
2x-0.8×2.6=3.08-2x 2.4×0.2x=0.5x-2.4 5(0.2x-2.5)=2.1x
0·7x+2·4=4·8-0·5x
解方程(x2-x+1)5-x5+4x2-8x+4=0
解方程(x^2 - x + 1)^5 - x^5 + 4x^2 - 8x + 4 = 0
(1)4x-1.2=10.8-4x (2)1.2x+8.5=5x-1 (3)1.8-2.4x=8x-0.72速喥