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mezya [45]
3 years ago
5

Tell whether each equation has one solution, infinitely many solutions, or no solution.

Mathematics
1 answer:
Phantasy [73]3 years ago
7 0

The equation 6x + 8 = 6(x + 2) has no solution

The equation 10x = 15 + 5x has one solution

The equation x + 11 = 8x + 11 - 7x has infinitely many solutions

Step-by-step explanation:

The types of the solutions of an equation of one variable

  • If the variable has one value, then the equation has one solution
  • If the variable disappears from the equation and the left hand side is equal to the right hand side, then the equation has infinitely many solutions
  • If the variable disappears from the equation and the left hand side is not equal the right hand side, then the equation has no solutions

∵ 6x + 8 = 6(x + 2)

- Simplify the right hand side

∴ 6x + 8 = 6x + 12

- Subtract 6 from both sides

∴ 8 = 12 ⇒ it can not be

- x disappears and the left hand side not equal the right and side,

  then use the 3rd case above

∵ L.H.S ≠ R.H.S

∴ The equation has no solution

∵ 10x = 15 + 5x

- Subtract 5x from both sides

∴ 5x = 15

- Divide both sides by 5

∴ x = 3

- The variable x has one solution, then use the 1st case above

∴ The equation has one solution

∵ x + 11 = 8x + 11 - 7x

- Add the like terms in the right hand side

∴ x + 11 = x + 11

- Subtract x from both sides

∴ 11 =  11

- x disappears and the left hand side is equal to the right and side,

  then use the 2nd case above

∵ L.H.S = R.H.S

∴ The equation has infinitely many solutions

Learn more:

You can learn more about the solutions of the equations in brainly.com/question/13168205

#LearnwithBrainly

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Answer:

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Step-by-step explanation:

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Subtract 8y from both sides:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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