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30 September, 13:49

Find "x"

-2x-4=20+6x

5x-8+3=2x+3x-5

x/4=9

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

8-2 (3x-4) + 2x=5 (x+6) + 4

+2
Answers (1)
  1. 30 September, 15:33
    0
    1. - 2x-4=20+6x

    Step 1: Simplify both sides of the equation.

    -2x-4=20+6x

    -2x+-4=20+6x

    -2x-4=6x+20

    Step 2: Subtract 6x from both sides.

    -2x-4-6x=6x+20-6x

    -8x-4=20

    Step 3: Add 4 to both sides.

    -8x-4+4=20+4

    -8x=24

    Step 4: Divide both sides by - 8.

    -8x/-8=24/-8

    x=-3

    Answer:

    x=-3

    3. (x/4) * (4) = (9) * (4)

    x=36

    Answer:

    x=36

    4.

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

    Step 1: Simplify both sides of the equation.

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

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

    10x+-2=3x+5

    10x-2=3x+5

    Step 2: Subtract 3x from both sides.

    10x-2-3x=3x+5-3x

    7x-2=5

    Step 3: Add 2 to both sides.

    7x-2+2=5+2

    7x=7

    Step 4: Divide both sides by 7.

    7x/7=7/7

    x=1

    Answer:

    x=1

    5.

    8-2 (3x-4) + 2x=5 (x+6) + 4

    Step 1: Simplify both sides of the equation.

    8-2 (3x-4) + 2x=5 (x+6) + 4

    8 + (-2) (3x) + (-2) (-4) + 2x = (5) (x) + (5) (6) + 4 (Distribute)

    8+-6x+8+2x=5x+30+4

    (-6x+2x) + (8+8) = (5x) + (30+4) (Combine Like Terms)

    -4x+16=5x+34

    -4x+16=5x+34

    Step 2: Subtract 5x from both sides.

    -4x+16-5x=5x+34-5x

    -9x+16=34

    Step 3: Subtract 16 from both sides.

    -9x+16-16=34-16

    -9x=18

    Step 4: Divide both sides by - 9.

    -9x/-9=18/-9

    x=-2

    Answer:

    x=-2
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