①移项
5x
{5x+3＜8 {2/x+1≥3/x
1个回答
相关问题
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3（x+1）-1=8X 3x+3-1=8x 3x-8x=3-1 -5x=2 x=-2/5 哪里算错了
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（-5/12)x8/15x3/2x(-2/3)x0x(-1)= (-1)x(-5/4)x8/15x3/2x(-2/3)x
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1.8x-2(5-3x) 2.-2(x-3)-3(2x-5)
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填空 8x^5-2x^3+1/3x^2-4=8x^5-( )-4=7x^5-( )-3
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2/3x=1/3x-1 3/8x+2=5/6x
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3X—【3—（5X—1）+2X】=8
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x-2/5x=14 1/3x+5=1/2x x-5/8x=1/3*45
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实数范围内因式分解：(1) 3x^2-5x-4 (2) -2x^2+3x+1 (3) (x^2-8x)+5(x^2+8x
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5x-2=7x+8 3=3/2x+16 1-3/2x=3x+2/5
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(x-1)/3-x/2=1 1-(2x)-1/5=x/3 (x-1)/2+1=x/3 2/3-8x=3-(1/2)x