(2x-10)x(1+50%)=30

问题描述:

(2x-10)x(1+50%)=30

(2X-10)x(1+50%)=30
(2X-10)=20
X=15

1.5(2x-10)=30
2x-10=20
2x=30
x=15

(2x-10)x(1+50%)=30
(2x-10)×1.5=30
(2x-10) =20
2x=30
x=15

(2x-10)x150%=30
(2x-10)=30x100/150
(2x-10)=20
2x=30
x=15