Question

equação x/2-25=50 equação (5-x+2)=100

Answer 1

x/2-25=50 =>  x = (50 + 25) x 2 = 150

(5-x+2)=100  => - x = 100 -5-2  => -x = 93  => x = -93

Answer 2

$\dfrac{x}{2} -25=50\to~~mmc=2\\\\ x-50=100\to\\\\ x=100+50\to\\\\ \boxed{x=150 }$




$(5-x+2)=100\to\\\\ -x=100-5-2\to\\\\ -x=93~(-1)\to\\\\ \boxed{x=-93}$