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

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


Simplifying
4x + -1y + 7(1x + 3y) = 0
4x + -1y + (1x * 7 + 3y * 7) = 0
4x + -1y + (7x + 21y) = 0

Reorder the terms:
4x + 7x + -1y + 21y = 0

Combine like terms: 4x + 7x = 11x
11x + -1y + 21y = 0

Combine like terms: -1y + 21y = 20y
11x + 20y = 0

Solving
11x + 20y = 0

Solving for variable 'x'.

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

Add '-20y' to each side of the equation.
11x + 20y + -20y = 0 + -20y

Combine like terms: 20y + -20y = 0
11x + 0 = 0 + -20y
11x = 0 + -20y
Remove the zero:
11x = -20y

Divide each side by '11'.
x = -1.818181818y

Simplifying
x = -1.818181818y

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