Rearrange before substitution:
7x - y = -5
Would it be: -y= 5 - 7x?
Yes.
How would you plug it into 5x - 3y = 1
Would it be: 5x - 3(-5 - 7x) = 1?
We'll, this is the whole problem:
Use substitution to solve for x and y:
{5x - 3y =1
{7x - y = -5
The answer is suppose to be (-1,-2)
Nevermind I got the answer
To rearrange the equation 7x - y = -5, we need to isolate the term that contains "y" on one side.
Using the subtraction property of equality, we can subtract 7x from both sides of the equation:
7x - y - 7x = -5 - 7x
This simplifies to:
-y = -7x - 5
To make the coefficient of "y" positive, we can multiply both sides of the equation by -1:
-1 * (-y) = -1 * (-7x - 5)
This gives us:
y = 7x + 5
So, the rearranged equation is y = 7x + 5.