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2(x+8)=3(x%1)怎样解

2(x+8)=3(x-1) 2x+16=3x-3 -x=-3-16=-19 x=19

解:3(x+2)=4(x+1) 3x+6=4x+4 4x-3x=6-4 x=2 希望能够帮助你

(1)去括号得,2x+16=3x-3,移项得,3x-2x=16+3,合并同类项得,x=19;(2)去分母得,2(3y-1)-6=5y-7,去括号得,6y-2-6=5y-7,移项得,6y-5y=-7+2+8,合并同类项得y=3.

X的平方-1+2X-2=0 X的平方+2X-3=0 (X+3)(X-1)=0 X=-3或X=1 求采纳

1/2(x-1/2(x-1)-1+2)=2/3(x-1) {将“+1”变为“-1+2”} 1/2((x-1)-1/2(x-1)+2)=2/3(x-1) → 1/2(1/2(x-1)+2)=2/3(x-1) 1/4(x-1)+1=2/3(x-1) {去括号} 5/12(x-1)=1 {移项,合并同类项} x-1=12/5 x=17/5=3.4

(1)2(x+8)=3(x-1) 2x+16=3x-3 x=19 (2)8x=-2(x+4) 8x=-2x-8 10x=-8 x=-4/5 (3)2x-2/3(x+3)=-x+3 6x-2(x+3)=3(-x+3) 6x-2x+3x=6+9 x=15/7 (4)2(10-0.5y)=-(1.5y+2) 20-y=-1.5y-2 0.5y=-2-20 y=-44 设无风时飞机的航速为x (x+24)×(2+...

2(2x-1)²-8(x-1)(3+x)=34 2(4x^2-4x+1)-8(3x+x^2-3-x)=34 8x^2-8x+2-16x-8x^2+24=34 -24x=8 x=-1/3

x(x+1)(x+2)(x+3)=7920 x(x+3)(x+1)(x+2)-7920=0 (x²+3x)(x²+3x+2)-7920=0 (x²+3x)²+2(x²+3x)-7920=0 (x²+3x+90)(x²+3x+88)=0 x²+3x+90=0或(无实解)x²+3x-88=0 (x-8)(x+11)=0 x-8=0或x+11=0 得x...

x-2分之1+3=2-x分之1-x x-1/2+3=2-1/x-x x+1/x+x=2+1/2-3 2x+1/x=-1/2 2x²+1=-x/2 x²+x/4=-1/2 x²+x/4+(1/8)=1/64-1/2 (x+1/8)²=-31/64 无实数解 x+1/8=±√31i/8 x=-1/8±√31i/8

(1+3/8)x+(119-x)*(1-2/5)=121 x=64

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