2/(5-x)+3/(x+7)
2/5-x+3/x+7
-66+6v=3(2+10v)
25000000 to the power 1/2
7x+2×7³=7⁵
-10(1+13x)+5=-5-11x
(25000000)1/2
7x+2*7³=7⁵
x2y-xy
9(a+7)=14a + 23