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algerbra!

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7(n+1)-4n=4
wut is n

-7(x-3)=-14
wut is x

8=3+5(y-2)
wut is y

2(x-3)+3(x-1)=-5

  • algerbra! - ,

    7(n+1)-4n=4
    Distribute the 7: 7n+7-4n=4
    Combine like terms (n): 3n+7=4
    Subtract the 7 on both sides: 3n=-3
    Divide by 3: n=-1

    8=3+5(y-2)
    Distribute the 5: 8=3+5y-10
    Subtract: 8=-7+5y
    Add the 7 to the other side: 15=5y
    Divide by 5: y=3

    2(x-3)+3(x-1)=-5
    Distribute both terms: 2x-6+3x-3=-5
    Subtract and add: 5x-9=-5
    Add 9: 5x=4
    Divide by 5: x=4/5

  • algerbra! - ,

    7(n+1)-4n=4
    7n + 7 - 4n = 4
    3n = -3
    n = -1

    -7(x-3)=-14
    -7x + 21 = -14
    -7x = -35
    x=5

    8=3+5(y-2)
    8 = 3 + 5y - 10
    15=5y
    y=3

    2(x-3)+3(x-1)=-5
    2x -6 + 3x - 3 = -5
    5x = 4
    x= 4/5

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