7.5c+2.5c+8=-7

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Solution for 7.5c+2.5c+8=-7 equation: 


Simplifying
7.5c + 2.5c + 8 = -7

Reorder the terms:
8 + 7.5c + 2.5c = -7

Combine like terms: 7.5c + 2.5c = 10c
8 + 10c = -7

Solving
8 + 10c = -7

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + 10c = -7 + -8

Combine like terms: 8 + -8 = 0
0 + 10c = -7 + -8
10c = -7 + -8

Combine like terms: -7 + -8 = -15
10c = -15

Divide each side by '10'.
c = -1.5

Simplifying
c = -1.5

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