-2.1=-.7c

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Solution for -2.1=-.7c equation:


Simplifying
-2.1 = -0.7c

Solving
-2.1 = -0.7c

Solving for variable 'c'.

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

Add '0.7c' to each side of the equation.
-2.1 + 0.7c = -0.7c + 0.7c

Combine like terms: -0.7c + 0.7c = 0.0
-2.1 + 0.7c = 0.0

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 0.7c = 0.0 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 0.7c = 0.0 + 2.1
0.7c = 0.0 + 2.1

Combine like terms: 0.0 + 2.1 = 2.1
0.7c = 2.1

Divide each side by '0.7'.
c = 3

Simplifying
c = 3

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