140=7c-30

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Solution for 140=7c-30 equation:


Simplifying
140 = 7c + -30

Reorder the terms:
140 = -30 + 7c

Solving
140 = -30 + 7c

Solving for variable 'c'.

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

Add '-7c' to each side of the equation.
140 + -7c = -30 + 7c + -7c

Combine like terms: 7c + -7c = 0
140 + -7c = -30 + 0
140 + -7c = -30

Add '-140' to each side of the equation.
140 + -140 + -7c = -30 + -140

Combine like terms: 140 + -140 = 0
0 + -7c = -30 + -140
-7c = -30 + -140

Combine like terms: -30 + -140 = -170
-7c = -170

Divide each side by '-7'.
c = 24.28571429

Simplifying
c = 24.28571429

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