7-x=1/2(3-x)-1/5(7x-5)

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Solution for 7-x=1/2(3-x)-1/5(7x-5) equation: 


x in (-oo:+oo)

7-x = (1/2)*(3-x)-((1/5)*(7*x-5)) // - (1/2)*(3-x)-((1/5)*(7*x-5))

(1/5)*(7*x-5)-((1/2)*(3-x))-x+7 = 0

(-1/2)*(3-x)+(1/5)*(7*x-5)-x+7 = 0

1/5*(7*x-5)-1/2*(3-x)-x+7 = 0

1/5*(7*x-5)-1/2*(3-x)-x+7 = 0

19/10*x-x-5/2+7 = 0

9/10*x-5/2+7 = 0

9/10*x+9/2 = 0

9/10*x+9/2 = 0

9/10*x+9/2 = 0 // - 9/2

9/10*x = -9/2 // : 9/10

x = -9/2/9/10

x = -5

x = -5

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