Question

How do you solve the equation `1.2c=2.6c=4.56`?

Answer 1

Assuming that one of the equal signs should have been a plus sign:
`1.2c+2.6c=4.56 rarr c=1.2`
`1.2c=2.6c+4.56 rarr c=-3.2bar(857142)...`

Explanation:

This question is being answered using the two most likely interpretations (since neither the originator nor the re-requester chose to provide a correction).
`bar(color(white)("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"))`

`color(black)(1.2c+2.6c=4.56)`

`3.8c = 4.56`
`c=4.56/3.8=1.2`

`bar(color(white)("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"))`

`color(black)(1.2c=2.6c+4.56)`

`-1.4c=4.56`
`c=-4.56/1.4=-3.2857...` (as above assuming my manual arithmetic is okay).