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choli [55]
3 years ago
15

1..) 2x +15 = 35 

Mathematics
1 answer:
Masja [62]3 years ago
3 0

Answer:

1) x=10

2) x=3

Step-by-step explanation:

1)

2x+15=35

Subtract 15 from both sides

2x=20

Divide both sides by 2

x=10

2(10)+15=35

20+15=35

35=35

this shows that 10 is the right answer

2)

7x-3=18

Add 3 to both sides

7x=21

Divide both sides by 7

x=3

7(3)-3=18

21-3=18

18=18

this shows that 3 is the right answer

Hope this helps

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Answer:

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Step-by-step explanation:

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14*10*8 = 1120

10*10*8 = 800

800 + 1120 = 1920

5 0
3 years ago
Man spent 10 minutes on his history homework and 3 minutes per question on his math homework. Which graph
Natalija [7]

Answer:

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Step-by-step explanation:

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4 years ago
Simplify, if x = 2 and y = -1: 3(y + 2)^2 + 3x
svet-max [94.6K]

Answer:

9

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
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Step-by-step explanation:

<u>Step 1: Define</u>

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<u>Step 2: Evaluate</u>

  1. Substitute:                    3(-1 + 2)² + 3(2)
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5 0
3 years ago
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Answer:

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Let me know if this helps!

5 0
3 years ago
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