Answer:
x = -3
Step-by-step explanation:
Answer:
42-15=4x+5x
27=9x
27/9=x
x=3
Step-by-step explanation:
Answer:
I think the answer is:
-Y = 7
-Z = 10.63
-X = 9.22
Step-by-step explanation:
Hope this helps!
:)
Answer:
(2, 4)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
3x + y = 10
y = x + 2
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: 3x + (x + 2) = 10
- Combine like terms: 4x + 2 = 10
- Isolate <em>x</em> term: 4x = 8
- Isolate <em>x</em>: x = 2
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define equation: y = x + 2
- Substitute in <em>y</em>: y = 2 + 2
- Add: y = 4