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ivann1987 [24]
3 years ago
7

Simplify the expression given below.

Mathematics
1 answer:
Nikitich [7]3 years ago
4 0
I don’t see a expression...
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Solve the system using substitution.<br> y - 3x = 1<br> 2y - x = 12<br> ([?], [])
anyanavicka [17]

Answer:

(2, 5)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y - 3x = 1

2y - x = 12

<u>Step 2: Rewrite Systems</u>

y - 3x = 1

  1. Add 3x on both sides:                    y = 3x + 1

<u>Step 3: Redefine Systems</u>

y = 3x + 1

2y - x = 12

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                    2(3x + 1) - x = 12
  2. Distribute 2:                         6x + 2 - x = 12
  3. Combine like terms:           5x + 2 = 12
  4. Isolate <em>x</em> term:                     5x = 10
  5. Isolate <em>x</em>:                              x = 2

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Define equation:                    2y - x = 12
  2. Substitute in <em>x</em>:                       2y - 2 = 12
  3. Isolate <em>y </em>term:                        2y = 10
  4. Isolate <em>y</em>:                                 y = 5
4 0
2 years ago
Someone check my answers please
Anna007 [38]

Answer:

its right

Step-by-step explanation:

4 0
3 years ago
How do I find the measures of the indicated angle that makes lines U and V parallel
Oxana [17]

Answer:

if u ll v then this angel is the twin of the one below and is 180-72

Step-by-step explanation:

7 0
2 years ago
What is 0.15%, 3/19, 0.015 ordered from least to greatest
Norma-Jean [14]

Answer:

least

0.15%

0.015

3/19

greatest

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Unit Rate Comparison Practice
Rama09 [41]

Answer:

\frac{2}{41} \: of \: a \: cup \: of \: sugar \: on \: 4 \: cups \: of \: a \: flour

Step-by-step explanation:

3:246=x:4 \\  \frac{3}{246}  =  \frac{x}{4}  \:  \:  =  >  \:  \: x =  \frac{3 \times 4}{246}  =  \frac{12}{246}  =  \frac{2}{41}

5 0
3 years ago
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