3[-5x-3(7x+y)]=

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Solution for 3[-5x-3(7x+y)]= equation: 


Simplifying
3[-5x + -3(7x + y)] = 0
3[-5x + (7x * -3 + y * -3)] = 0
3[-5x + (-21x + -3y)] = 0

Combine like terms: -5x + -21x = -26x
3[-26x + -3y] = 0
[-26x * 3 + -3y * 3] = 0
[-78x + -9y] = 0

Solving
-78x + -9y = 0

Solving for variable 'x'.

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

Add '9y' to each side of the equation.
-78x + -9y + 9y = 0 + 9y

Combine like terms: -9y + 9y = 0
-78x + 0 = 0 + 9y
-78x = 0 + 9y
Remove the zero:
-78x = 9y

Divide each side by '-78'.
x = -0.1153846154y

Simplifying
x = -0.1153846154y

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