48-(3c+4)=4(c+7)c

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Solution for 48-(3c+4)=4(c+7)c equation:


Simplifying
48 + -1(3c + 4) = 4(c + 7) * c

Reorder the terms:
48 + -1(4 + 3c) = 4(c + 7) * c
48 + (4 * -1 + 3c * -1) = 4(c + 7) * c
48 + (-4 + -3c) = 4(c + 7) * c

Combine like terms: 48 + -4 = 44
44 + -3c = 4(c + 7) * c

Reorder the terms:
44 + -3c = 4(7 + c) * c

Reorder the terms for easier multiplication:
44 + -3c = 4c(7 + c)
44 + -3c = (7 * 4c + c * 4c)
44 + -3c = (28c + 4c2)

Solving
44 + -3c = 28c + 4c2

Solving for variable 'c'.

Combine like terms: -3c + -28c = -31c
44 + -31c + -4c2 = 28c + 4c2 + -28c + -4c2

Reorder the terms:
44 + -31c + -4c2 = 28c + -28c + 4c2 + -4c2

Combine like terms: 28c + -28c = 0
44 + -31c + -4c2 = 0 + 4c2 + -4c2
44 + -31c + -4c2 = 4c2 + -4c2

Combine like terms: 4c2 + -4c2 = 0
44 + -31c + -4c2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-11 + 7.75c + c2 = 0

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 7.75c + 11 + c2 = 0 + 11

Reorder the terms:
-11 + 11 + 7.75c + c2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 7.75c + c2 = 0 + 11
7.75c + c2 = 0 + 11

Combine like terms: 0 + 11 = 11
7.75c + c2 = 11

The c term is 7.75c.  Take half its coefficient (3.875).
Square it (15.015625) and add it to both sides.

Add '15.015625' to each side of the equation.
7.75c + 15.015625 + c2 = 11 + 15.015625

Reorder the terms:
15.015625 + 7.75c + c2 = 11 + 15.015625

Combine like terms: 11 + 15.015625 = 26.015625
15.015625 + 7.75c + c2 = 26.015625

Factor a perfect square on the left side:
(c + 3.875)(c + 3.875) = 26.015625

Calculate the square root of the right side: 5.100551441

Break this problem into two subproblems by setting 
(c + 3.875) equal to 5.100551441 and -5.100551441.

Subproblem 1

c + 3.875 = 5.100551441 Simplifying c + 3.875 = 5.100551441 Reorder the terms: 3.875 + c = 5.100551441 Solving 3.875 + c = 5.100551441 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3.875' to each side of the equation. 3.875 + -3.875 + c = 5.100551441 + -3.875 Combine like terms: 3.875 + -3.875 = 0.000 0.000 + c = 5.100551441 + -3.875 c = 5.100551441 + -3.875 Combine like terms: 5.100551441 + -3.875 = 1.225551441 c = 1.225551441 Simplifying c = 1.225551441

Subproblem 2

c + 3.875 = -5.100551441 Simplifying c + 3.875 = -5.100551441 Reorder the terms: 3.875 + c = -5.100551441 Solving 3.875 + c = -5.100551441 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3.875' to each side of the equation. 3.875 + -3.875 + c = -5.100551441 + -3.875 Combine like terms: 3.875 + -3.875 = 0.000 0.000 + c = -5.100551441 + -3.875 c = -5.100551441 + -3.875 Combine like terms: -5.100551441 + -3.875 = -8.975551441 c = -8.975551441 Simplifying c = -8.975551441

Solution

The solution to the problem is based on the solutions from the subproblems. c = {1.225551441, -8.975551441}

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