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16 votes
16 votes
Solve the following equation for x: 6(4x + 5) = 3(x + 8) + 3.

User RobJan
by
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2 Answers

15 votes
15 votes
-7

6•4 = 24x
6• 5= 30

3•X=3x
3•8= 24

24+ 3=27

24x+ 30= 3x+27

Subtract 27 from both sides

24x + 3 =3x

3x- 24x= -21

-21/3= -7


User John Downey
by
3.0k points
21 votes
21 votes

Answer:

x = -1/7

Decimal form = -0.14285714285

Explanation:


6\left(4x+5\right)=3\left(x+8\right)+3


24x+30=3x+27


\mathrm{Subtract\:}30\mathrm{\:from\:both\:sides}


24x+30-30=3x+27-30


\mathrm{Simplify}


24x=3x-3


\mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides}


24x-3x=3x-3-3x


\mathrm{Simplify}


21x=-3


\mathrm{Divide\:both\:sides\:by\:}21


(21x)/(21)=(-3)/(21)


x=-(1)/(7)

[RevyBreeze]

User Aelguindy
by
3.2k points