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charle [14.2K]
3 years ago
12

3(x+7)+6=-9 there is no answer for this

Mathematics
2 answers:
anyanavicka [17]3 years ago
6 0

Answer:

x= -12

Step-by-step explanation:

3(x+7)+6= -9

3x+21+6= -9

subtract 6 from both sides that gives you your equation that you can work with.

3x+21= -15

then subtract 21 from both sides that gives you

3x/3 = -36/3

the 3 cancels out and leaves you with -36 divided by 3

your answer is -12

LuckyWell [14K]3 years ago
3 0

\text {Hello! The answer to your problem is...}

\fbox {x=-12}

\text {Your 1st Step is to Simplify the Equation}

\text {(3)(x)+(3)(7)+6=-9 (Distribute)}

\text {3x+21+6=-9}

\text {(3x)+(21+6)=-9 (Combine Like Terms)}

\text {3x+27=-9}

\text {Your 2nd Step is to Subtract 27}

\text {3x+27-27=-9-27}

\text {3x=-36}

\text {Your 3rd/Final Step is to Divide 3}

\text {3x/3=-36/3}

\fbox {x=-12}

\text {Best of Luck!}

\text {-LimitedX}

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If x+y=10 and x - y = 11, what is the value of x - 72​
pentagon [3]

Answer:

x+y=10\\\\x-y=11\\-y=11-x\\y=-11+x\\\\x+(-11+x)=10\\x-11+x=10\\2x=21\\x=10.5

x-72\\10.5-72\\-61.5

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8 0
3 years ago
Tim,Griff and Kay baked chocolate for Kay s birthday party.Tim baked 3 times as many as Kay.Griff baked half as many as Tim.Alto
lianna [129]
Answer: 48

------------------------------------------------------------------------------
Define the number of cakes they baked in term of x
------------------------------------------------------------------------------
Let the number of cakes Kay baked be x

Kay = x
Tim = 3x                ← Tim baked 3 times as many as Kay
Griff = 1.5x            ← Griff baked 1/2 as many as Tim

------------------------------------------------------------------------------
Construct the equation and solve for x
------------------------------------------------------------------------------
The total number of cakes baked was 88.

x + 3x + 1.5x = 88        ← Combine like terms
5.5 x = 88                     ← Divide by 5.5
÷5.5    ÷5.5
x = 16

------------------------------------------------------------------------------
Find the number of cakes each baked
------------------------------------------------------------------------------
Kay = x = 16
TIm = 3x = 16 x 3 = 48
Griff = 1.5x = 1.5(16) = 24

------------------------------------------------------------------------------
Answer: Tim baked 48 cakes.
------------------------------------------------------------------------------
3 0
4 years ago
Deepak spent 178$ on food last month if he reduces by 15% the next month how much will he spend
weeeeeb [17]
He will spend $66.3 because 78 times 15/100 (which is 15%) is 11.7, and since he reduces the food you will have to subtract 11.7 from $78, to get $66.3
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Grace [21]

Answer:

0.45

Step-by-step explanation:

Percent is per 100, so the fraction is 45/100.

The decimal is the numerator, but you need to swoop 2 times.

Therefore, the answer is 0.45.

7 0
4 years ago
Read 2 more answers
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