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2 years ago

X=y+10 and x=2y+3 solve by substitution needing x and y

Mathematics

2 answers:

Svetach [21]2 years ago

7 0

Plug x= y+10 in x= 2y+3, we have:
y+10= 2y+3
⇒ 10- 3= 2y-y
⇒ 7= y

x= y+ 10= 7+ 10= 17

Final answer: x= 17, y= 7~

Alja [10]2 years ago

5 0

The two equations given in the question are
x = y + 10
And
x = 2y + 3
Now let us substitute the value of x in the second equation with that of the first equation. We get
x = 2y + 3
y + 10 = 2y + 3
y - 2y = 3 - 10
- y = - 7
y = 7
Now putting the value of y in the first equation, we get
x = y + 10
= 7 + 10
= 17
So the value of x comes out to be 17 and the value of y comes out to be 7.

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2 years ago

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Answer: $(-9, 16]$

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=====================================================

Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

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2 years ago

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Answer:

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Step-by-step explanation:

You can sum all of the angles together and solve for x.

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3 years ago

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Natasha_Volkova [10]

Answer:

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I hope this helps and please let me know if there is anything you are confused about or is still unclear, I will be happy to help!

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