13X-4(2X+5)=2(X+11)
1个回答
13x-8x-20=2x+22
3x=42
x=14
相关问题
7x-2x=4 10.2+2x=11.7 13除x-5=1.5 3(
(3x^2-4+7x)-(?)=11x^2+13
2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.|
2x1/5+4x2/11+4x2/5+3x4/11
5-7x=2x-13(3x+16)/2=4x-7(5y-11)/7=(11y+3)/2127%x-17%=20%x+1/
1,{3x+2y=13 {5x-2y=11 ,2,{5x+2y=25 {3x+4y=15
以下长度如何换算成厘米?11" x 8-1/2" x 5-1/2" 11-1/4" x 8-3/4" x 6" 13-5
(x+1.2)x4=13.2 0.7x+3x1.4=11.2
已知(7x-13)(5x-4)+(7x-13)(11x-5)
解方程2x^5+5x^4-13x^3-13x^2+5x+2=0