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allochka39001 [22]
3 years ago
6

2+3x=-4(5+2x) solve for x, help please

Mathematics
2 answers:
Fynjy0 [20]3 years ago
7 0
X = -2 and for a little help use Photo-math for youre answers! Works great!
Misha Larkins [42]3 years ago
4 0

Answer:

x=-2

Step-by-step explanation:

2+3x=-4.(5+2x)

Expand  \: the  \: parentheses:

2 + 3x =  - 4.5 - 4.2x

Simplify \:  the \:  arithmetic:

2 + 3x =  - 20 - 4.2x

Solve \:  by \:  distributing:

2 + 3x =  - 20 - 8x

Group  \: all \:  x  \: terms \:  on \:  the  \: left  \: \\  side \:  of  \: the \:  equation

2 + 3x =  - 20 - 8x

Add  \: 8x \:  to  \: both \:  sides:

2 + 3x + 8x =  - 8x  + 8x

Simplify  \: the \:  arithmetic:

11x + 2 =  - 20 - 8x + 8x

Group \:  like  \: terms:

11x + 2 =  - 8x + 8x - 20

Group \:  all  \: constants \:  on \:  the \:  right  \\  \: side \:  of  \: the \:  equation

11x + 2 =  - 8x + 8x - 20

Subtract \:  2  \: from  \: both \:  sides:

11x + 2 -  =  - 20 - 2

Simplify \:  the  \: arithmetic:

11x =  - 20 - 2

Simplify  \: the \:  arithmetic:

11x =  - 22

Isolate \:  the \:  x

11x =  - 22

Divide  \: both \:  sides \:  by  \: 11:

\frac{11x}{11}  =  \frac{ - 22}{11}

Simplify \:  the \:  fraction:

x =  \frac{ - 22}{11}

Find  \: the \:  greatest \:  common \:  factor  \\  \: of  \: the  \: numerator \:  and  \: denominator:

x =  \frac{ - 2.11}{1.11}

Factor \:  out  \: and \:  cancel  \: the \:  greatest   \\ \: common \:  factor:

x =  - 2

Thanks!!!!!!!

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