Question

x/2+y/3=5,x/2-y/9=6​

Answer 1

Answer:

$\frac{x}{2} + \frac{y}{3} = 5$

$\frac{3x + 2y}{6} = 5$

$3x + 2y = 30$

$2y = 30 - 3x$

$\frac{x}{2} - \frac{y}{9} = 6$

$\frac{9x - 2y}{18} = 6$

$9x - 2y = 108$

$9x - (30 - 3x) = 108$

$9x - 30 + 3x = 108$

$12x = 108 + 30$

$12x = 138$

$x = 11.5$

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