3(x+y)-4(x-y)=

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


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

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

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

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

Solving
-1x + 7y = 0

Solving for variable 'x'.

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

Add '-7y' to each side of the equation.
-1x + 7y + -7y = 0 + -7y

Combine like terms: 7y + -7y = 0
-1x + 0 = 0 + -7y
-1x = 0 + -7y
Remove the zero:
-1x = -7y

Divide each side by '-1'.
x = 7y

Simplifying
x = 7y

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