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ad-work [718]
3 years ago
9

How many solutions exist for the given equation 1/2 (x+12)=4x-1

Mathematics
2 answers:
Daniel [21]3 years ago
7 0

Answer:

x=2

Step-by-step explanation:

1/2 (x+12)=4x-1

Multiply each side by 2

2*1/2 (x+12)=2*(4x-1)

x+12 = 8x -2

x+12 = 8x - 2

Subtract x from each side

12 = 7x -2

Add 2 to each side

14 =7x

Divide by 7

14/7 = 7x/7

2 =x

IRISSAK [1]3 years ago
7 0

Steps to solve:

1/2(x + 12) = 4x - 1

~Distribute

1/2x + 6 = 4x - 1

~Subtract 6 to both sides

1/2x = 4x - 7

~Subtract 4x to both sides

-7/2x = -7

~Multiply -2/7 to both sides

x = 2

Best of Luck!

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Three consecutive even numbers have a sum where one half of that sum is between 90 and 105.
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5 0
3 years ago
I NEED HELP! ASAP, THIS IS SO HARD AND MY BRAIN HURTS, IF U HELP ME WITH OTHER QUESTIONS LIKE THIS ILL GIVE U 50+ POINTS
Dimas [21]

Answer:

24.3

Step-by-step explanation:

We need to follow the order of operations PEMDAS:

  • Parentheses
  • Exponents
  • Multiplication and Division (from left to right)
  • Addition and Subtraction (from left to right)

Carry out the operation in the parentheses first:

   3³ + 14.7 ÷ 7 - (1.2 × 4)

⇒ 3³ + 14.7 ÷ 7 - 4.8

Now the exponent:

⇒ 3³ + 14.7 ÷ 7 - 4.8

⇒ (3 × 3 × 3) + 14.7 ÷ 7 - 4.8

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⇒ 27 + 2.1 - 4.8

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3 years ago
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Answer:

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Step-by-step explanation:

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