15(3x+4)=100-35x
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15(3x+4)=100-35x
15(3x+4)=100-35x
15(3x+4)=100-35x
15(3x+4)=100-35x
45x+60= 100-35x
45x+35x=100-60
80x=40
x=0.5
15(3x+4)=100-35x
30-3(3-X)=4X 3X+12*6=15X+12 4X-2(50-X)=20 12(X-13)=10(X+3) 100-X=3(20+X)
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
15-(4-5x)=2x+(35-3x)
(1) 3x-42=9x-2 (2) 2x-5(3-2x)=10 (3) 2(2x+1)-(5x-1)=6 (4)2x+14=28-14x(5)2(x-2)-3(4x-1)=9(1+x)(6)11x+64+2x=100-9x(7)15-(8-5x)=7x+(4-3x)(8)30x-10(10-x)=100
15x(3x-8)-4X(2X+3)=6X(4X-4)-4
解方程1、 (x-1)(x-2)分之2x-1=(x-2)(x-3)分之x-5 (2)2x平方-11x-21分之x=x平方-12x+35分之x+7(3)y平方-4分之2=y+2分之1-1 (4)x平方-4分之15+2-x分之2=1
3(3x-2)=10-0.5(x+3.5)35(x-2)-15(5x-6)=(22x-63)-21(3x-4)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
1x+2x+3x+4x+5x+6x+7x…+99x=100
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:x-2x+3x-4x+...+99x-100x=25
解方程:x-2x+3x-4x+.+99x-100x=25
x-2x+3x-4x+...+99x-100x=25
4.2-0.6x=3.6x 5x+2x=33.6 7x-4x=0.75 2x+7x+2.1=12 56x-32x-119=361 x+5=2x 3x+9=6x 4x-28=2x 2x+18=7x 5x=25*4-15x 7x-x+2*3=29.4 (28.8+5.5x+3.2)除2=71
3/x-1=4/x 6/x+1=x+5/x(x+1)
x-2=(104-x)+2 6x-59=10x-75 (x+10)+(x-15)=280-x4(x-62)=x-38 60x-40=(60+20)*(x-5) 32x+32*0.5-25x+64x=24x+496-49x x+15=3*(109-x ) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(2x+5)=17(x-2)-4(2x-1) (13x+8)/3=5x-1x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-1