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2 years ago

DECIDE WHEATHER THE ORDER PAIR(-3,-5) IS A SOLITION OF THE EQUATION 7X-5Y=15

Mathematics

2 answers:

zimovet [89]2 years ago

8 0

Answer:

Not a solution

Step-by-step explanation:

Hello!

We can determine if it's a solution by plugging in the x and y-values of the point into the equation. If both sides are equal to each other, then it is a solution.

-3 is the x-value and -5 is the y-value, since an ordered pari is written in the form of (x,y).

<h3>Evaluate</h3>

7x - 5y = 15
7(-3) - 5(-5) = 15
-21 + 25 = 15
4 ≠ 15

Since both sides are not equal to each other, (-3,-5) is not a solution.

8_murik_8 [283]2 years ago

4 0

Answer:

(-3, -5) is not a solution of the equation 7x - 5y = 15

Step-by-step explanation:

1) Knowing that coordinates are given to us as (x, y), plug in the ordered pair into the equation. $7(-3)-5(-5)=15$

2) Do PEMDAS on the left side of the equation

$-21+25=15$
$4=15$
$4\neq 15$

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