2/3x+0.5x=42 x-0.15x=1.7
2个回答
2/3x+0.5x=42
2/3x+1/2x=42
4x+3x=42×6
7x=42×6
x=36
x-0.15x=1.7
0.85x=1.7
x=2
相关问题
(0.3+x)*2=8 7+5x=42 1.3x-x=18.6
3(x-7)-5(4-x)=15 0.2分之0.1x+0.3+2.5=0.4x-1
5/12x-x/4=1/3 0.5x-0.7=6.5-1.3x 3(x-7)+5(x-4)=15 (y-1)/2=2-(
(1/2)2(x+0.5)-3(x-0.4)=5.6,3-2(2x+1)=2(x-3),15-(7-5x)=2x+(5-
2x^2+3x+1=0 2x^2-7x-15=0 3x^2-7x-6=0
15-2x=7.5 1.6÷x=2.4÷0.15 2.7÷0.3-7x=5.5 18x-4x-2.5x=3.68 3.6
(x+1)(x+3)(x+5)(x+7)+15=0
10-3x=4 0.9x=8.1 15x-7.5x=15 0.8x+0.4x=1.2 解方程
帮我解方程 1.2x+4.8=7.2 x-0.4×2.5=15.5 3.3x+7.7x=12.1 x-0.6x=0.24
解方程,(0.3+x)x2=8,7+5x=42,1.3x-x=18.6