(3x+15)-4x=12+(7x+5)

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Solution for (3x+15)-4x=12+(7x+5) equation:


Simplifying
(3x + 15) + -4x = 12 + (7x + 5)

Reorder the terms:
(15 + 3x) + -4x = 12 + (7x + 5)

Remove parenthesis around (15 + 3x)
15 + 3x + -4x = 12 + (7x + 5)

Combine like terms: 3x + -4x = -1x
15 + -1x = 12 + (7x + 5)

Reorder the terms:
15 + -1x = 12 + (5 + 7x)

Remove parenthesis around (5 + 7x)
15 + -1x = 12 + 5 + 7x

Combine like terms: 12 + 5 = 17
15 + -1x = 17 + 7x

Solving
15 + -1x = 17 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
15 + -1x + -7x = 17 + 7x + -7x

Combine like terms: -1x + -7x = -8x
15 + -8x = 17 + 7x + -7x

Combine like terms: 7x + -7x = 0
15 + -8x = 17 + 0
15 + -8x = 17

Add '-15' to each side of the equation.
15 + -15 + -8x = 17 + -15

Combine like terms: 15 + -15 = 0
0 + -8x = 17 + -15
-8x = 17 + -15

Combine like terms: 17 + -15 = 2
-8x = 2

Divide each side by '-8'.
x = -0.25

Simplifying
x = -0.25

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