12-2x=1.5x+5
1个回答
12-2x=1.5x+5
1.移项:12-5=1.5x+2x
2.合并同类项:3.5x=7
3.未知项系数化为1:x=2
相关问题
2/7x(-5/12)-5/7x5/12-5/3x1/4
(1)5x- 1 4 ×8=10 (2)12x+1.5=5.1 (3)5.5x-1.3x=12.6 (4)5(x-2.8
2/1 X 3/1 +12/5 X 2/1 5/4 X7/5 -2/1 (6+15/2)X5
(12-x)X2.5=12.5+x
解方程:(1)[2/x+5=12x−1];(2)[5x−4/2x−4=2x+53x−6−12].
(5*x+4)/3+(x-1)/4!=2-(5*x-5)/12
5x+4/3+x-1/4=2-5x+5/12
⑴ 4(x-1)^2=9(x-5)^2 ⑵(√20+√5)÷ √5-√1/3×√ 12 ⑶(x-5)^2=(2x-1)(
1.5x+(12-x)×2.5=20
2(x+4)-3(5-2x)=12(x+1)+5解答