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leva [86]
3 years ago
15

Help please writer the answer as letters

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

the correct answer for A is choice B. answer choice C is correct for question B.

Step-by-step explanation:

answer choice D is correct for C.

Liula [17]3 years ago
3 0

Answer:

B, D, D

Step-by-step explanation:

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Write ( d + 5 ) + ( d + 5 ) + ( d + 5 ) + ( d + 5 ) as an equivalent expression by grouping the like terms
Rama09 [41]
Group the d’s together and you would get 4d and then group the 5’s together and you get 20
4 0
4 years ago
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Solve the following system of linear equations using the elimination method. 3m-n=-10
telo118 [61]

Answer:

m = -3, n = 1

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>

3m - n = -10

2m + n = -5

<u>Step 2: Solve for </u><em><u>m</u></em>

<em>Elimination</em>

  1. Combine equations:                    5m = -15
  2. Divide 5 on both sides:               m = -3

<u>Step 3: Solve for </u><em><u>n</u></em>

  1. Define equation:                    3m - n = -10
  2. Substitute in <em>m</em>:                      3(-3) - n = -10
  3. Multiply:                                  -9 - n = -10
  4. Add 9 to both sides:              -n = -1
  5. Divide -1 on both sides:         n = 1
4 0
4 years ago
Read 2 more answers
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