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How do you solve #-9- 2( 7x + 4) = - 1#?

Answer 1

Isaiah Anthony

x=-8/7
You have to isolate x

#-9-2(7x+4)= -1#

#-2(7x+4)= -1+9#

#-2(7x+4)= 8#

#(-2(7x+4))/-2= 8/-2#

#7x+4= -4#

#7x=-4-4#

#x=-(8/7)#

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Answer 2

Hazel Anglin

#x=-16/14#

Let's begin by distributing #-2# to #(7x+4):#

#-9(-2*7x)+##(-2*4)=-1#

#-9-14x-8=-1#

On the LHS, combine similar terms:

#-14x-17=-1#

Add #17# to both sides:

#-14x-17+17=-1+17#

#-14x+0=16#

#-14x=16#

Divide both sides by #-14#:

#(-14)/-14x=16/-14#

#x=-16/14#

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Answer 3

Kennedy Adams

To solve the equation -9 - 2(7x + 4) = -1, follow these steps:

Distribute the -2: -9 - 14x - 8 = -1
Combine like terms: -17 - 14x = -1
Add 17 to both sides to isolate the variable term: -14x = 16
Divide both sides by -14: x = -16/14
Simplify: x = -8/7

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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.