Solving x + 3y = 5 and -x - y = -3 by eliminating.

(2, 1)

Step-by-step explanation:

1. First, line up all the terms to match.

This is already done for you in this equation.

2. Find a coefficient that matches in both equations.

The key is to ignore the sign. In your equations, this is the x variable's coefficient, which is both 1.

3. Decide if you need to ADD or SUBTRACT the coefficients found in step 2 to eliminate the variable.

We have -1 and 1. To make this zero, you'll have to add. -1+1=0

4. Based on your desicion in step 3, add or subtract the entire equations.

This gave us 2y=2, which can be easily solved.

5. Solve for one variable.

We solved for y=1.

6. Replace the variable you found in step 5 in an original equation and solve.

This gave us x=2.

7. Place together as ordered paid and call it a day :)

angle addition postulate

2x=56

step-by-step explanation: