Question

-2x - 8y = -16 2x - 7y = -14

Answer 1

For the first one , if your solving for x , the answer would be : x=8-4y
For the first one , if your solving for y , your answer would be : y=2-x/4

2x-7y=-14
Solving for x : x=-7 +7y/2
Solving for y : y=2+ 2x/7

Answer 2

Answer:

(0, 2)

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS
• Equality Properties

Algebra I

• Solving systems of equations using substitution/elimination
• Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

-2x - 8y = -16

2x - 7y = -14

Step 2: Solve for y

Elimination

1. Add 2 equations together:                    -15y = -30
2. Divide -15 on both sides:                       y = 2

Step 3: Solve for x

1. Define original equation:                    2x - 7y = -14
2. Substitute in y:                                     2x - 7(2) = -14
3. Multiply:                                                2x - 14 = -14
4. Add 14 to both sides:                           2x = 0
5. Divide 2 on both sides:                        x = 0

Step 4: Graph

Check the system.