Answer:
So the solution to the system of equations is x = 2 and y = 5.
Explanation:
To solve this system of equations, we can use either substitution or elimination. Here's how to solve it using elimination:
Multiplying the first equation by 2, we get:
2x + 2y = 14
Now we can subtract the second equation from this one:
2x + 2y - (2x - y) = 14 - (-1)
Simplifying this, we get:
3y = 15
Dividing both sides by 3, we get:
y = 5
Now we can substitute this value of y into either of the original equations to solve for x. Using the first equation, we get:
x + 5 = 7
Subtracting 5 from both sides, we get:
x = 2
So the solution to the system of equations is x = 2 and y = 5.