Question

\(\dfrac{2x+3}{7}=\dfrac{4}{5}\)

Answer 1

\(\Rightarrow10x+15=28\\ \Rightarrow10x=13\\ \Rightarrow x=\dfrac{13}{10}\)

Answer 2

x=13/10

Answer 3

⇔ 5 ( 2x + 3 ) = 4. 7

⇔    10x + 15 = 28

⇔            10x = 28 - 15

⇔           10 x = 13

⇔                x = 1,3

Answer 4

2x+3.5=4.7

2x+15=28

2x=28-15=13

x=13:2=13/2