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Vinil7 [7]
3 years ago
11

5(x+1)=3x-9 find x (please it’s due today)

Mathematics
2 answers:
saveliy_v [14]3 years ago
7 0

Answer:

<h2>x = - 7</h2>

Step-by-step explanation:

5(x+1)=3x-9

<u>Expand the terms in the bracket</u>

That's

5x + 5 = 3x - 9

Subtract 3x from both sides of the equation

5x - 3x + 5 = 3x - 3x - 9 \\ 2x + 5 =  - 9

Subtract 5 from both sides of the equation

2x  + 5 - 5 =  - 9 - 5 \\ 2x =  - 14

Divide both sides by 2

\frac{2x}{2}  =  -  \frac{14}{2}  \\

We have the final answer as

<h3>x = - 7</h3>

Hope this helps you

Yanka [14]3 years ago
5 0

5(x+1)=3x−9

Step 1: Simplify both sides of the equation.

5(x+1)=3x−9

(5)(x)+(5)(1)=3x+−9(Distribute)

5x+5=3x+−9

5x+5=3x−9

Step 2: Subtract 3x from both sides.

5x+5−3x=3x−9−3x

2x+5=−9

Step 3: Subtract 5 from both sides.

2x+5−5=−9−5

2x=−14

Step 4: Divide both sides by 2.

2x

2

=

−14

2

x=−7

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4=2/9x A) 6 B) 9 C) 15 D) 18
victus00 [196]

Answer:

D. 18

Step-by-step explanation:

  • multiply both sides by 9/2, the reciprocal of 2/9.

4×(9/2)=x

  • express 4×(9/2) as a single fraction.

4×9/2=x

  • multiply 4 and 9 to get 36.

36/2=x

  • divide 36 by 2 to get 18.

18=x

  • swap sides so that all variable terms are on the left hand side.

x=18

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4 years ago
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Someone please help me with this question asap.
vova2212 [387]

Answer:

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Step-by-step explanation:

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-1<x<1 and 1<x

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