Question

X = -7 + y,2 x – 3y = -16;​

Answer 1

2(-7+у)-у=-16

-14+2у-1у=-16

-14+у=-16

у=2

X=5

Answer 2

To solve the system of equations:

1. X = -7 + y
2. 2x - 3y = -16

You can use the substitution method. Start by solving equation 1 for X:

X = -7 + y

Now, substitute this expression for X into equation 2:

2(-7 + y) - 3y = -16

Now, distribute the 2 on the left side of the equation:

-14 + 2y - 3y = -16

Combine like terms by adding 2y and -3y:

-14 - y = -16

Now, add 14 to both sides of the equation to isolate the variable y:

-y = -16 + 14 -y = -2

Now, multiply both sides by -1 to solve for y:

y = 2

Now that you have the value of y, you can find the value of X by substituting y = 2 back into equation 1:

X = -7 + 2 X = -5

So, the solution to the system of equations is X = -5 and y = 2.