Modeling with Systems of Linear Equations

Question 10 • Recovery Content Sec Math 1 - Quarter 3 - 2026/27

Nina is 10 years younger than Deepak. Deepak is 3 times as old as Nina. Which system of equations can be used to find d, Deepak's age, and n, Nina's age?

Answer

d = n + 10 d = 3n

d = n − 10 d = 3n

d = n + 10 n = 3d

d = n − 10 n = 3d

Solving Systems: Introduction to Linear Combinations

Solving Systems of Linear Equations: Linear Combinations

Combining Like Terms to Solve Equations