How do you solve the system of equations #8x + y = 31# and #7x + 5y = 23#?
1 Answer
Explanation:
Using the elimination method, we can multiply the first equation by -5 to cancel out the y value and solve for x:
By doing this, we have transformed
When we add these two equations,
Now that we have solved for x, we can plug this value into any of our other equations to find y. I would recommend the shorter equation (for your own ease):
By this point, we have establisehd that
Since our values both check out, our solution for this systems of equation is