Answer:

1.)x=−6

2.)y=5

3.)12/23x−1

Step-by-step explanation:

#1 Solution:

3x=x−12

(Subtract x from both sides.)

3x−x=−12

(Combine 3x and −x to get 2x.)

2x=−12

(Divide both sides by 2.)

x= 2/−12

(Divide −12 by 2 to get −6.)

#2 Solution

4(y−1)=2y+6

(Use the distributive property to multiply 4 by y−1.)

4y−4=2y+6

(Subtract 2y from both sides.)

4y−4−2y=6

(Combine 4y and −2y to get 2y.)

2y−4=6

(Add 4 to both sides._

2y=6+4

(Add 6 and 4 to get 10.)

2y=10

(Divide both sides by 2.)

y= 2/10

(Divide 10 by 2 to get 5.)

y=5

#3 Solution

1/2x+3/4x−1+2/3x

(Combine  2/1x and  4/3x to get  4/5x.)

5/4x−1+ 3/2x

(Combine  4/5x and  3/2x to get  12/23x.)

12/23x−1

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