(1/2(9x-56))-7=2x-20

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Solution for (1/2(9x-56))-7=2x-20 equation: 


x in (-oo:+oo)

(1/2)*(9*x-56)-7 = 2*x-20 // - 2*x-20

(1/2)*(9*x-56)-(2*x)-7+20 = 0

(1/2)*(9*x-56)-2*x-7+20 = 0

1/2*(9*x-56)-2*x-7+20 = 0

1/2*(9*x-56)-2*x-7+20 = 0

5/2*x-28-7+20 = 0

5/2*x-35+20 = 0

5/2*x-15 = 0

5/2*x-15 = 0

5/2*x-15 = 0 // + 15

5/2*x = 15 // : 5/2

x = 15/5/2

x = 6

x = 6

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