Question

Solve the following equation:
3z + 8 = 3 + z

Answer 1

Answer:

3z + 8 = 3 + z

3z-z= 3-8

2z= -5

z= -5/2

Answer 2

Answer:

3z+8=3+z

We move all terms to the left:

3z+8-(3+z)=0

We add all the numbers together, and all the variables

3z-(z+3)+8=0

3z-z-3+8=0

We add all the numbers together, and all the variables

2z+5=0

We move all terms containing z to the left, all other terms to the right

2z=-5

z=-5/2

z=-2+1/2