(3x+y)+(6x-4)=9x+12

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Solution for (3x+y)+(6x-4)=9x+12 equation:


Simplifying
(3x + y) + (6x + -4) = 9x + 12

Remove parenthesis around (3x + y)
3x + y + (6x + -4) = 9x + 12

Reorder the terms:
3x + y + (-4 + 6x) = 9x + 12

Remove parenthesis around (-4 + 6x)
3x + y + -4 + 6x = 9x + 12

Reorder the terms:
-4 + 3x + 6x + y = 9x + 12

Combine like terms: 3x + 6x = 9x
-4 + 9x + y = 9x + 12

Reorder the terms:
-4 + 9x + y = 12 + 9x

Add '-9x' to each side of the equation.
-4 + 9x + -9x + y = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
-4 + 0 + y = 12 + 9x + -9x
-4 + y = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
-4 + y = 12 + 0
-4 + y = 12

Solving
-4 + y = 12

Solving for variable 'y'.

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

Add '4' to each side of the equation.
-4 + 4 + y = 12 + 4

Combine like terms: -4 + 4 = 0
0 + y = 12 + 4
y = 12 + 4

Combine like terms: 12 + 4 = 16
y = 16

Simplifying
y = 16

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