Answer:
Step-by-step explanation:
Multiplication property of equality. C is your answer
Answer:
Step-by-step explanation:
what data
Answer:
x=3
Step-by-step explanation:
Y=-1
x+y=2
x-1=2
x=3
3-1=2
Answer:
(0, 4)
x = 0
y = 4
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define systems</u>
12x - 5y = -20
y = x + 4
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: 12x - 5(x + 4) = -20
- Distribute -5: 12x - 5x - 20 = -20
- Combine like terms: 7x - 20 = -20
- Isolate <em>x</em> term: 7x = 0
- Isolate <em>x</em>: x = 0
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define original equation: y = x + 4
- Substitute in <em>x</em>: y = 0 + 4
- Add: y = 4