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Sagot :
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. [tex]7(-3)-5(-5)=15[/tex]
2) Do PEMDAS on the left side of the equation
- [tex]-21+25=15[/tex]
- [tex]4=15[/tex]
- [tex]4\neq 15[/tex]
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).
Evaluate
- 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.
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