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3 years ago

How do you solve this equation7x+9=3x+29

Mathematics

1 answer:

Bumek [7]3 years ago

5 0

Answer:

x= 5

Step-by-step explanation:

First, subtract the smallest variable to both sides to move the variable to one side.

7x+9= 3x+29

-3x -3x

Now, subtract 9 to both sides.

4x+9= 29

-9 -9

Finally, divide by 4 to both sides to isolate the variable.

4x= 20

4 4

x=5

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Please hep me fast!!!!!!!!!!

FromTheMoon [43]

Answer:

y = -1/2x

Step-by-step explanation:

The y - intercept is 0, because the point where the line touches the y - axis is y - value of 0

The slope is -1/2 because as it rises by -10, it runs by 20

Slope is rise/run which is -10/20 which simplifies to -1/2

y = mx + b

b = y - intercept

m = slope

y = -1/2x + 0 or y = -1/2x

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0

2 years ago

Read 2 more answers

Which equation represents the line that passes through the points (6,9) and (3.5)?

sukhopar [10]

the answer is y=2x-3

You can look at my work if you really need to

5 0

3 years ago

2x^6/20x^7 pls help me i have a test today and i don’t know how to solve it

Vedmedyk [2.9K]

Answer:

$\frac{1}{10x}$

Step-by-step explanation:

$\frac{2x^{6} }{20x^{7} } = \frac{x^{6} }{10x^{7} } \\\\=\frac{1}{10x}$

3 0

3 years ago

Construct 3 linear equation starting with qiven solution z = 1/3

Andreyy89

Answer:

(a) $9z+2=5$

(b) $21z-11=-4$

Step-by-step explanation:

We are required to construct 3 linear equations starting with the given solution z = 1/3.

Equation 1

$z=\frac{1}{3}$

Multiply both sides by 9

$9z=\frac{1}{3}\times 9\\9z=3$

Rewrite 3 as 5-2

9z=5-2

Add 2 to both sides

Our first equation is: $9z+2=5$

Equation 2

$z=\frac{1}{3}$

Multiply both sides by 21

$21z=\frac{1}{3}\times 21\\21z=7$

Rewrite 7 as 11-4

21z=11-4

Subtract 11 from both sides

Our second equation is: $21z-11=-4$

Equation 3

$z=\frac{1}{3}$

Multiply both sides by 6

$6z=\frac{1}{3}\times 6\\6z=2$

Rewrite 6z as 4z+2z

4z+2z=2

Subtract 2z from both sides

Our third equation is: $4z=2-2z$

4 0

3 years ago

The cost of a bagel and a cup of coffee is $2.35. The cost of 2 bagels and a cup of coffee is $4.20. What is the cost of one cup

Gnesinka [82]

Hey!

--------------------------------------------

Solution and Answer:

4.20 - 2.35 - $1.85 per bagel.

1.85 x 2 = $3.70 for 2 bagels.

4.20 - 3.70 = $0.50 per coffee.

--------------------------------------------

Hope This Helped ;)

7 0

3 years ago