21x+y-5x+3(x+2y)=

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Solution for 21x+y-5x+3(x+2y)= equation: 


Simplifying
21x + y + -5x + 3(x + 2y) = 0
21x + y + -5x + (x * 3 + 2y * 3) = 0
21x + y + -5x + (3x + 6y) = 0

Reorder the terms:
21x + -5x + 3x + y + 6y = 0

Combine like terms: 21x + -5x = 16x
16x + 3x + y + 6y = 0

Combine like terms: 16x + 3x = 19x
19x + y + 6y = 0

Combine like terms: y + 6y = 7y
19x + 7y = 0

Solving
19x + 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.
19x + 7y + -7y = 0 + -7y

Combine like terms: 7y + -7y = 0
19x + 0 = 0 + -7y
19x = 0 + -7y
Remove the zero:
19x = -7y

Divide each side by '19'.
x = -0.3684210526y

Simplifying
x = -0.3684210526y

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