7x-4y=1/2(3x+6y)

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Solution for 7x-4y=1/2(3x+6y) equation: 


x in (-oo:+oo)

7*x-(4*y) = (1/2)*(3*x+6*y) // - (1/2)*(3*x+6*y)

7*x-((1/2)*(3*x+6*y))-(4*y) = 0

(-1/2)*(3*x+6*y)+7*x-4*y = 0

7*x-1/2*(3*x+6*y)-4*y = 0

7*x-1/2*(3*x+6*y)-4*y = 0

11/2*x-3*y-4*y = 0

11/2*x-7*y = 0

11/2*x-7*y = 0

11/2*x-7*y = 0 // + -7*y

11/2*x = -(-7*y) // : 11/2

x = (-(-7*y))/11/2

x = 14/11*y

x = 14/11*y

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