Question 355230
Hi,
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solving
x^2 - 6x = (1/2)x + 42
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mulitplying thru with 2
2x^2 - 12x = x + 84
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set to zero to solve
2x^2 - 13x -84  = 0
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using quadratic formaula to solve
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
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{{{x = (13 +- sqrt( 841))/(4) }}}
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{{{x = (13 +- 29)/(4) }}}
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x = 42/4 = 10.5
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x = -16/4  = -4