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lana [24]
3 years ago
12

What is 2x + 3y = 13 x = 2 + 3y

Mathematics
2 answers:
IgorC [24]3 years ago
4 0

Answer:

Step-by-step explanation:

Given that

2x+3y=13. Equation 1

x=2+3y. Equation 2

Using substitution method

Substitute x in equation 2 to equation 1

2x+3y=13

2(2+3y)+3y=13

4+6y+3y=13

4+9y=13

9y=13-4

9y=9

y=9/9

y=1.

To get x, substitute y=1 into equation 2

x=2+3y

x=2+3(1)

x=2+3

x=5

Then, x=5 and y=1 is the solution to the simultaneous equation

Zanzabum3 years ago
3 0

Answer:

y = 1

x = 5

Step-by-step explanation:

Substitute:

2(2 + 3y) + 3y = 13

Simplify:

4 + 6y + 3y = 13

Combine terms:

4 + 9y = 13

Subtract 4 from each side:

9y = 9

Divide by 9:

y = 1

Substitute:

x = 2 + 3(1)

Simplify:

x = 2 + 3

Combine terms:

x = 5

Check with original equation:

2(5) + 3(1) = 13

Simplify:

10 + 3 = 13

Combine terms:

13 = 13

It works!

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Answer:

<H = 40

Step-by-step explanation:

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3 years ago
A jet ski with average speed of 60 mph left a pier by the river upstream. Fifteen minutes after its motor broke, and it began dr
DochEvi [55]
<h3>Answer:</h3>

4.25 mph

<h3>Step-by-step explanation:</h3>

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... speed = distance/time

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If we let x represent the current speed in miles per hour, the number of miles the jet ski goes upstream is ...

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5 0
3 years ago
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tatuchka [14]
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san4es73 [151]

Answer:

True

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This is one of the most easiest way to divide.

6 0
4 years ago
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