How do you solve #4( a - 1) = 7a + 2#?

Answer 1

#a=-2#

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Answer 2

a = -2

#4(a-1) = 7a + 2#

On the left hand side, multiply each term inside the brackets by 4

#4a - 4 = 7a + 2#

Subtract 2 from both sides

#4a - 6 = 7a#

Subtract 4a from both sides

#-6 = 7a - 4a# #-6 = 3a#

Divide both sides by 3

#-2 = a# #a = -2#
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Answer 3

To solve 4(a - 1) = 7a + 2:

  1. Distribute the 4 across the parentheses: 4a - 4 = 7a + 2
  2. Rearrange the equation: 4a - 7a = 2 + 4
  3. Combine like terms: -3a = 6
  4. Divide both sides by -3: a = -2
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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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