Solution equation: x minus 55% = 1.8

Solution equation: x minus 55% = 1.8


x-55%=1.8
x-0.55=1.8
x=1.8+0.55
x=2.35



Square of X + 1-2 / 7 of X * (1 / x) + 1 = 0 to solve the equation


Let a = X-1 / X
a²=x²-2+1/x²
So (A & # 178; + 2) - 7a / 2 + 1 = 0
2a²-7a+6=0
(2a-3)(a-2)=0
therefore
x-1/x=3/2
2x²-3x-1=0
x=(3±√17)/4
x-1/x=2
x²-2x-1=0
x=1±√2