Question

Tìm x biết: 10 - 2 . (x + 3) = 5 . (x - 2)

Answer 1

Tìm x biết: 10 - 2 . (x + 3) = 5 . (x - 2)

theo đề ta có:

10 - 2 . (x + 3) = 5 . (x - 2)

=> \(\dfrac{x+3}{x-2}=\dfrac{5}{10-2}\)

=> \(\dfrac{x+3}{x-2}=\dfrac{5}{8}\)

=> x+3 = 5

=> x= 2

và x-2= 8

=> x= 10

Answer 2

x=2

Answer 3

Answer 4

\(10-2\left(x+3\right)=5\left(x-2\right)\\ \Leftrightarrow10-\left(2x+6\right)=5x-10\\ \Leftrightarrow10-2x-6=5x-10\\ \Leftrightarrow7x=10-6+10\\ \Leftrightarrow7x=14\\ \Leftrightarrow x=2\)