y x 8- y x 5 + y x 2 = 125 y : 4 = 5280:4 17/09/2021 Bởi Amaya y x 8- y x 5 + y x 2 = 125 y : 4 = 5280:4
$\text {a, y×8-y×5+y×2 =125}$ $\text {⇔y×(8-5+2) =125}$ $\text {⇔y×5 =125}$ $\text {⇒y =25}$ $\text {Vậy y=25}$ $\text {b, y:4 =5280:4}$ $\text {⇔y:4 =1320}$ $\text {⇒y =5280}$ $\text {Vậy y=5280}$ $\text {Chúc bạn học tốt~}$ $\text {@lamtung2}$ Bình luận
Đáp án:
y x 8- y x 5 + y x 2 = 125
3xy+2xy=125
5xy=125
xy=25
y : 4 = 5280:4
y=5280
$\text {a, y×8-y×5+y×2 =125}$
$\text {⇔y×(8-5+2) =125}$
$\text {⇔y×5 =125}$
$\text {⇒y =25}$
$\text {Vậy y=25}$
$\text {b, y:4 =5280:4}$
$\text {⇔y:4 =1320}$
$\text {⇒y =5280}$
$\text {Vậy y=5280}$
$\text {Chúc bạn học tốt~}$
$\text {@lamtung2}$