The mistake is in step 3:
I: −2m =−12 − 2n
II: 2m = 8 + 8n
the student set both right sides of the equations equal (−12 − 2n = 8 + 8n), but the left sides aren't equal: first equation has -2m, second has +2m so the signs of one of the equations must be inverted first
Answer:
hello
Step-by-step explanation:
u sayh-e-l-l-o yW
Answer:
v does not exist
Step-by-step explanation:
5v+5=4+5v
there is no v
Answer:
4:12
Step-by-step explanation:
I think you asked for a ratio?
