12+20(3.5)=c

Solution for 12+20(3.5)=c equation:

Simplifying
12 + 20(3.5) = c

Multiply 20 * 3.5
12 + 70 = c

Combine like terms: 12 + 70 = 82
82 = c

Solving
82 = 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.
82 + -1c = c + -1c

Combine like terms: c + -1c = 0
82 + -1c = 0

Add '-82' to each side of the equation.
82 + -82 + -1c = 0 + -82

Combine like terms: 82 + -82 = 0
0 + -1c = 0 + -82
-1c = 0 + -82

Combine like terms: 0 + -82 = -82
-1c = -82

Divide each side by '-1'.
c = 82

Simplifying
c = 82