Mathematics, 07.01.2021 01:20 bbb4951
Given a system of two equations in Two variable, replacing one equation by the sum of that equation and multiple of the other produces a system with the same solution. Show why this is true by solving the system of equations given. Justify the reason for each step. Use addition property of equality and multiplication property of equally in your answers.
1. To solve the system using elimination, First multiply the bottom equation by two. Write the new system of equations.
5x+2y=7
2. Why is this multiplication allowed?
3. What variable will be eliminated when the equations are combined after the multiplication?
4. Next, add the equations tighter. Your answer should be a single equation with one variable.
5. Why can you add the equations
6. Solve the equations for x
7. Substitute x back into one of the equations solve for y
8. What is the solution to the system of the equations?
Please I need this in 24 hours
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