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2 years ago

What graph can be used to solve the equation 2x - 1 = x + 2?

Mathematics

1 answer:

storchak [24]2 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

What is the length of x? What is the length of EF? Only enter numbers in the answer boxes below:

dimaraw [331]

Focus on triangles DFC and DFE:

They are both right triangles because DF is perpendicular to EC
DC=DE
DF is a common side

So, the two triangles are congruent. It follows that CF=FE, and in particular

$8x=3x+15 \iff 5x=15 \iff x=3$

And since x=3, the length of EF is

$EF=3x+15=3\cdot 3+15=24$

7 0

3 years ago

Plz answer this brainliest will be whoever answers it

USPshnik [31]

Idk but I would guess 3!

5 0

3 years ago

How do I set this up to solve as a linear equation?

NISA [10]

I don't see any numbers to set up in an equation or letters

4 0

3 years ago

How would i solve for x and y in 3x+2y=17 and 2x-y=2 by using substitution

maxonik [38]

I’ll do an example problem, and I challenge you to do this on your own!
4x+6y=23
7y-8x=5
Solving for y in 4x+6y=23, we can separate the y by subtracting both sides by 4x (addition property of equality), resulting in 6y=23-4x. To make the y separate from everything else, we divide by 6, resulting in (23-4x)/6=y. To solve for x, we can do something similar - subtract 6y from both sides to get 23-6y=4x. Next, divide both sides by 4 to get (23-6y)/4=x.

Since we know that (23-4x)/6=y, we can plug that into 7y-8x=5, resulting in
7*(23-4x)/6-8x=5
= (161-28x)/6-8x
Multiplying both sides by 6, we get 161-28x-48x=30
= 161-76x
Subtracting 161 from both sides, we get -131=-76x. Next, we can divide both sides by -76 to separate the x and get x=131/76. Plugging that into 4x+6y=23, we get 4(131/76)+6y=23. Subtracting 4(131/76) from both sides, we get
6y=23-524/76. Lastly, we can divide both sides by 6 to get y=(23-524/76)/6

Good luck, and feel free to ask any questions!

4 0

3 years ago

Taya2010 [7]

Answer:

-7x+7y=-49 matches this graph.

maddymcg408 avatar

The correct option is (B)

Step-by-step explanation: We are given to match the graph with its correct equation.

From the graph, we note that

there is a straight line where the points (7, 0) and (0, -7) lie on it.

So, the slope of the line is given by

Since the line passes through the point (7, 0), so its equation will be

Thus, the required equation of the graphed line is

Option (B) is CORRECT.

Step-by-step explanation:

-7x+7y=-49 matches this graph.

maddymcg408 avatar

The correct option is (B)

Step-by-step explanation: We are given to match the graph with its correct equation.

From the graph, we note that

there is a straight line where the points (7, 0) and (0, -7) lie on it.

So, the slope of the line is given by

Since the line passes through the point (7, 0), so its equation will be

Thus, the required equation of the graphed line is

Option (B) is CORRECT.

maddymcg408 avatar

jr3974 avatar

jr3974

10/31/2017

Mathematics

College

answered

Match the graph with its equation.

7x + 7y = 0

7x – 7y = –49

7x + 7y = 49

–7x +7y = –49

SEE ANSWERS

maddymcg408 avatar

^_^

4 0

3 years ago