1.) 28 - 0.3 = 0.7 - 12

2.) 3c -4c + 1 = 5c + 2 + 3

5 answers

1 is not an equation.

2.
3c -4c + 1 = 5c + 2 + 3

-c + 1 = 5c + 5

-6c = 4

c = -2/3
1). 28 - 0.3y = 0.7y - 12
Regarding the second equation, how does -c become -6c?
28 - 0.3y = 0.7y - 12

28 + 12 = 0.7y + 0.3y

40 = y

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Regarding the second equation, how does -c become -6c?

I subtracted 5c from both sides of equation and combined like terms.
I subtracted 5c from both sides of equation and combined like terms.