b. \( \frac{2 x}{5}=10 \)

To solve the equation \( \frac{2 x}{5}=10 \), you start by eliminating the fraction. Multiply both sides by 5: \( 2x = 50 \). Now, to isolate \( x \), divide both sides by 2: \( x = 25 \). And just like that, you’ve found the value of \( x \) — simple and sweet! Having a solid grasp of solving equations with fractions not only helps in algebra but in various real-life scenarios such as budgeting or cooking. For example, if you're splitting a bill among friends or measuring ingredients, being able to manipulate fractions and find unknowns is a super handy skill to have in your toolkit!