7+2c-4*2=-9

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Solution for 7+2c-4*2=-9 equation:


Simplifying
7 + 2c + -4 * 2 = -9

Multiply -4 * 2
7 + 2c + -8 = -9

Reorder the terms:
7 + -8 + 2c = -9

Combine like terms: 7 + -8 = -1
-1 + 2c = -9

Solving
-1 + 2c = -9

Solving for variable 'c'.

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

Add '1' to each side of the equation.
-1 + 1 + 2c = -9 + 1

Combine like terms: -1 + 1 = 0
0 + 2c = -9 + 1
2c = -9 + 1

Combine like terms: -9 + 1 = -8
2c = -8

Divide each side by '2'.
c = -4

Simplifying
c = -4

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