9(8c-1)-12=70c+9

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Solution for 9(8c-1)-12=70c+9 equation:


Simplifying
9(8c + -1) + -12 = 70c + 9

Reorder the terms:
9(-1 + 8c) + -12 = 70c + 9
(-1 * 9 + 8c * 9) + -12 = 70c + 9
(-9 + 72c) + -12 = 70c + 9

Reorder the terms:
-9 + -12 + 72c = 70c + 9

Combine like terms: -9 + -12 = -21
-21 + 72c = 70c + 9

Reorder the terms:
-21 + 72c = 9 + 70c

Solving
-21 + 72c = 9 + 70c

Solving for variable 'c'.

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

Add '-70c' to each side of the equation.
-21 + 72c + -70c = 9 + 70c + -70c

Combine like terms: 72c + -70c = 2c
-21 + 2c = 9 + 70c + -70c

Combine like terms: 70c + -70c = 0
-21 + 2c = 9 + 0
-21 + 2c = 9

Add '21' to each side of the equation.
-21 + 21 + 2c = 9 + 21

Combine like terms: -21 + 21 = 0
0 + 2c = 9 + 21
2c = 9 + 21

Combine like terms: 9 + 21 = 30
2c = 30

Divide each side by '2'.
c = 15

Simplifying
c = 15

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