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maths

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1) 2a-a/5 = 2/3
2) 3(a+4)+1=a/2
3) 4x-1/3+2(x+6)=1,1/2
4) 2/x-3/4X=2
5) 3n-5n=14
6)3/x+2/x+2=1
7) 2/n+2+3/n-1=5
8) 2/a+1-3/2a+3

  • maths - ,

    I imagine you're supposed to solve for the missing variables. I'll do a couple so you get the idea.

    1)

    2a - a/5 = 2/3

    adding like terms:

    1.8 a = 2/3
    9/5 a = 2/3

    a = 10/27

    2)

    3(a+4)+1 = a/2
    3*a + 12 + 1 = a/2
    3*a + 13 = a/2
    13 = -2.5a
    a = 13/-2.5

    . . .

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