18=-7+4(c+9)

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Solution for 18=-7+4(c+9) equation:


Simplifying
18 = -7 + 4(c + 9)

Reorder the terms:
18 = -7 + 4(9 + c)
18 = -7 + (9 * 4 + c * 4)
18 = -7 + (36 + 4c)

Combine like terms: -7 + 36 = 29
18 = 29 + 4c

Solving
18 = 29 + 4c

Solving for variable 'c'.

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

Add '-4c' to each side of the equation.
18 + -4c = 29 + 4c + -4c

Combine like terms: 4c + -4c = 0
18 + -4c = 29 + 0
18 + -4c = 29

Add '-18' to each side of the equation.
18 + -18 + -4c = 29 + -18

Combine like terms: 18 + -18 = 0
0 + -4c = 29 + -18
-4c = 29 + -18

Combine like terms: 29 + -18 = 11
-4c = 11

Divide each side by '-4'.
c = -2.75

Simplifying
c = -2.75

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