Answer:
Step-by-step explanation:
6y+9=18
6y=2
y=1/3
Answer:
-18
Step-by-step explanation:
did the problem rn
<h2>Sorry I was trying to explain how to plot the points but it was harder to understand without a graph</h2>
Step-by-step explanation:
The first step in completing the square is to make the leading coefficient 1.
3 − 4x = 5x² − 14x
First, add 4x to both sides.
3 = 5x² − 10x
Divide both sides by 5.
3/5 = x² − 2x
The next step is to create the square. Take half of -2, square it, then add the result to both sides. (-2/2)² = 1.
3/5 + 1 = x² − 2x + 1
8/5 = x² − 2x + 1
Finally, factor the perfect square and solve for x.
8/5 = (x − 1)²
Take the square root of both sides.
±√(8/5) = x − 1
Add 1 to both sides.
x = 1 ± √(8/5)
<h3><u>The value of x is equal to -9.</u></h3><h3><u>The value of y is equal to 1.</u></h3>
x - 3y = -12
<em><u>Add 3y to both sides.</u></em>
x = -12 + 3y
<em><u>Plug the value of x into the second equation.</u></em>
2(-12 + 3y) + 11y = -7
<em><u>Distributive property.</u></em>
-24 + 6y + 11y = -7
<em><u>Add 24 to both sides.</u></em>
6y + 11y = 17
<em><u>Combine like terms.</u></em>
17y = 17
<em><u>Divide both sides by 17.</u></em>
y = 1
Now that we have the value of y we can plug it into the original equation to find the value of x.
x - 3(1) = -12
x - 3 = -12
<em><u>Add 3 to both sides.</u></em>
x = -9