Math Problem Statement

Solve the system of equations: 3a - 2b = 2 and 3a + 2b = -2

Solution

To solve the system of equations:

3a - 2b &= 2 \quad \text{(Equation 1)} \\ 3a + 2b &= -2 \quad \text{(Equation 2)} \end{aligned}$$ We can add the two equations together to eliminate $$b$$. ### Step 1: Add the two equations $$(3a - 2b) + (3a + 2b) = 2 + (-2)$$ Simplifying this: $$6a = 0$$ $$a = 0$$ ### Step 2: Substitute $$a = 0$$ into one of the original equations (let's use Equation 1): $$3(0) - 2b = 2$$ $$-2b = 2$$ $$b = -1$$ ### Final Solution: $$a = 0, \quad b = -1$$ Would you like more details, or do you have any questions about the solution? ### Related Questions: 1. How can you solve this system using substitution instead of elimination? 2. What happens if the system of equations had no solution or infinitely many solutions? 3. How would the solution change if the coefficients of $$a$$ and $$b$$ were different? 4. Can you graph these two equations and show their point of intersection? 5. How do we solve systems of equations with three variables? ### Tip: Always check your solution by substituting the values of $$a$$ and $$b$$ back into both original equations to verify they satisfy both.

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Math Problem Analysis

Mathematical Concepts

Linear Systems
Algebra
Elimination Method

Formulas

Addition of two linear equations to eliminate a variable
Substitution of solved value back into an equation

Theorems

Elimination Method for solving systems of equations

Suitable Grade Level

Grades 8-10