Solution equation: (2x + 1) ^ 2 + 2 = 18

Solution equation: (2x + 1) ^ 2 + 2 = 18


(2x+1)^2+2=18
(2x+1)^2=16
2x+1=4
2x=3
x=1.5



Solve the equation: 2x + 40% x = 7.2 and 5 times (x-3 / 1) = 2


2x+40%x=7.2
2.4x=7.2
x=7.2/2.4
x=3
5 times (x-3 / 1) = 2
x-3/1=5/2
x=5/2+3/1
x=15/11



Solve the equation 2x + 40% x = 7


2x+40%x=7.2
2x+0.4x=7.2
2.4x=7.2
x=3