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How do you solve #7( 3+ 4x ) = - 7#?

Answer 1

Kennedy Adams

#x=-1#

#7(3+4x)= -7#

Distribute the #7# to #3# and #4x# by multiplying.

#21+28x= -7#

Subtract #21# from both sides

#28x =-28#

Divide by #28# on both sides

#x=-1#

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Answer 2

Eli Assouline

To solve the equation 7(3 + 4x) = -7:

Distribute the 7: 21 + 28x = -7
Subtract 21 from both sides: 28x = -28
Divide both sides by 28: x = -1

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Answer 3

Eva Adamson

To solve the equation (7(3 + 4x) = -7):

Distribute the (7) on the left side: [7 \times 3 + 7 \times 4x = -7]
Simplify each term: [21 + 28x = -7]
Subtract (21) from both sides to isolate the term with (x): [28x = -7 - 21]
Combine like terms: [28x = -28]
Divide both sides by (28) to solve for (x): [x = \frac{-28}{28}]
Simplify: [x = -1]

So, the solution to the equation is (x = -1).

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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.