Final answer:
To solve the equation + 61₁ + 213 − 45 = 0 and find the values of 1₁ and 1₂, follow these steps: Solve the second equation for 1₂. Substitute the value of 1₂ into the first equation. Solve the resulting equation to find the value of 1₁.
Step-by-step explanation:
To solve the equation + 61₁ + 213 − 45 = 0 and find the values of 1₁ and 1₂, we need to follow the given steps:
- Solve the second equation for 1₂: 1₂ = 6 - 21₁
- Substitute the value of 1₂ into the first equation: I₁ = 1₂ + 13 = (6 − 21₁) + (22.5 — 31₁) = 28.5 — 51₁
- Solve the resulting equation to find the value of 1₁.