Which of the following equations have no solution? Check all that apply. 6x + 1 = 3(2x – 4)
2 – 5x = 7x – 12
4(3 – x) = 2(6 – 2x)
5(x + 2) = 2(x – 4)
–4(x + 3) = 4(–x – 1)

1 and 5

Step-by-step explanation:

1. 6x + 1 = 3(2x - 4)

6x + 1 = 6x - 12

6x + 13 = 6x

-6x         -6x

    13 = 0x

no solution

2. 2-5x = 7x - 12

    2 = 12x - 12

    14 = 12x

    1 1/6 = x

3. 4(3 - x) = 2(6 - 2x)

  12 - 4x = 12 -4x

    -4x = -4x

   x = ∞

4. 5(x + 2) = 2(x - 4)

   5x + 10 = 2x - 8

   3x + 10 = -8

   3x= -18

   x = -6

5. -4(x + 3) = 4( -x - 1)

   -4x -12 = -4x -4

    -4x - 8 = -4x

     -8 = 0x

  no solution

–4(x + 3) = 4(–x – 1) and 6x + 1 = 3(2x – 4)

Step-by-step explanation:

I copied the other dude

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

is means division by fractions

step-by-step explanation: