(3x+7y-4)-3(2x-4y-1)=

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Solution for (3x+7y-4)-3(2x-4y-1)= equation:


Simplifying
(3x + 7y + -4) + -3(2x + -4y + -1) = 0

Reorder the terms:
(-4 + 3x + 7y) + -3(2x + -4y + -1) = 0

Remove parenthesis around (-4 + 3x + 7y)
-4 + 3x + 7y + -3(2x + -4y + -1) = 0

Reorder the terms:
-4 + 3x + 7y + -3(-1 + 2x + -4y) = 0
-4 + 3x + 7y + (-1 * -3 + 2x * -3 + -4y * -3) = 0
-4 + 3x + 7y + (3 + -6x + 12y) = 0

Reorder the terms:
-4 + 3 + 3x + -6x + 7y + 12y = 0

Combine like terms: -4 + 3 = -1
-1 + 3x + -6x + 7y + 12y = 0

Combine like terms: 3x + -6x = -3x
-1 + -3x + 7y + 12y = 0

Combine like terms: 7y + 12y = 19y
-1 + -3x + 19y = 0

Solving
-1 + -3x + 19y = 0

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + -3x + 1 + 19y = 0 + 1

Reorder the terms:
-1 + 1 + -3x + 19y = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3x + 19y = 0 + 1
-3x + 19y = 0 + 1

Combine like terms: 0 + 1 = 1
-3x + 19y = 1

Add '-19y' to each side of the equation.
-3x + 19y + -19y = 1 + -19y

Combine like terms: 19y + -19y = 0
-3x + 0 = 1 + -19y
-3x = 1 + -19y

Divide each side by '-3'.
x = -0.3333333333 + 6.333333333y

Simplifying
x = -0.3333333333 + 6.333333333y

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