7.7=c+-0.4

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Solution for 7.7=c+-0.4 equation:


Simplifying
7.7 = c + -0.4

Reorder the terms:
7.7 = -0.4 + c

Solving
7.7 = -0.4 + c

Solving for variable 'c'.

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

Add '-1c' to each side of the equation.
7.7 + -1c = -0.4 + c + -1c

Combine like terms: c + -1c = 0
7.7 + -1c = -0.4 + 0
7.7 + -1c = -0.4

Add '-7.7' to each side of the equation.
7.7 + -7.7 + -1c = -0.4 + -7.7

Combine like terms: 7.7 + -7.7 = 0.0
0.0 + -1c = -0.4 + -7.7
-1c = -0.4 + -7.7

Combine like terms: -0.4 + -7.7 = -8.1
-1c = -8.1

Divide each side by '-1'.
c = 8.1

Simplifying
c = 8.1

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