(5x+4)+(7x+4)=56

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Solution for (5x+4)+(7x+4)=56 equation:


Simplifying
(5x + 4) + (7x + 4) = 56

Reorder the terms:
(4 + 5x) + (7x + 4) = 56

Remove parenthesis around (4 + 5x)
4 + 5x + (7x + 4) = 56

Reorder the terms:
4 + 5x + (4 + 7x) = 56

Remove parenthesis around (4 + 7x)
4 + 5x + 4 + 7x = 56

Reorder the terms:
4 + 4 + 5x + 7x = 56

Combine like terms: 4 + 4 = 8
8 + 5x + 7x = 56

Combine like terms: 5x + 7x = 12x
8 + 12x = 56

Solving
8 + 12x = 56

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 12x = 56 + -8

Combine like terms: 8 + -8 = 0
0 + 12x = 56 + -8
12x = 56 + -8

Combine like terms: 56 + -8 = 48
12x = 48

Divide each side by '12'.
x = 4

Simplifying
x = 4

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