Question

What is the value of x?4/5 x- 1/10 = 3/10O 1/4O 8/25O2/5O1/2

Answer 1

`\begin{gathered} (4)/(5)x-(1)/(10)=(3)/(10) \\ Take\text{ }(1)/(10)\text{ to the other side of the equation so that only }(4)/(5)x\text{ is left on } \\ the\text{ left hand side} \\ \\ (4)/(5)x=\text{ }(3)/(10)+(1)/(10) \\ (4)/(5)x=(3+1)/(10) \\ (4)/(5)x=(4)/(10) \\ C\text{ross multiply} \\ 4x(10)=4(5) \\ 40x=20 \\ \text{divide both sides by 40} \\ (40x)/(40)=(20)/(40) \\ x=(1)/(2) \end{gathered}`