How do you solve the system of equations #-8x + 4y = - 12# and #- x - y = - 3#?
1 Answer
Explanation:
Equation 1:
Equation 2:
Because its easier to work with positive values, I'm going to multiple both sides of equation 2 by -1.
I'm going to make
Substitute this value for
Solve for
Then combine the like terms
Subtract 12 from both sides of the equation.
Multiply both sides of the equation by -1 to make them positive.
Divide both sides of the equation by 12 to leave
Now we've found