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Airida [17]
3 years ago
10

e" class="latex-formula">
Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0

Answer:

x= -9

Step-by-step explanation:

Subtract 9 from both sides:

3x+9−9=−18−9

Simplify:

3x=−27

Divide both sides by 3

(3x/3) =(−27/3)

Simplify again to get the result!

x= -9

Studentka2010 [4]3 years ago
6 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

value of x is ~

  • \boxed{ - 9}

Here's the solution teeny ~

  • 3x + 9 =  - 18

  • 3x =  - 18 - 9
  • 3x =  - 27

  • x =  - 27 \div 3

  • x =  - 9

Hope it helps ~

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What is the solution to the system of equations The equations 9x-10y=6, 8x-10y=-23, 9x+10y=-16, and 8x+10y=13
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Answer to Q1:

(29,25.5)

Step-by-step explanation:

We have given a system of equations.

9x-10y = 6                        eq(1)

8x-10y = -23                     eq(2)

We have to solve given system of equations by finding the value of  x and y.

Subtracting eq(1) from eq(2), we have

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9x-10y-8x+10y = 6+23

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Putting above value of x in eq(1), we have

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-261+261-10y = -261+6

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Dividing by -10 to both sides of above equation, we have

y = -255 / -10

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Answer to Q2:

(-29,24.5)

Step-by-step explanation:

We have given a system of equation.

9x+10y = -16                  eq(1)

8x+10y = 13                     eq(2)

We have to find the value of x and y.

Subtracting eq(1) from eq(2), we have

9x+10y-(8x+10y) = -16-13

9x+10y-8x-10y = -16-13

Adding like terms, we have

x +0y = -29

x = -29

Putting the value of x in eq(1), we have

9(-29)+10y = -16

-261+10y = -16

10y = -16+261

10y = 245

y = 245 / 10

y = 24.5

Hence , the solution of 9x+10y=-16, and 8x+10y=13 is (-29,24.5).

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