Solve the system equation

Question

9× +y = 12
2× + 4y = -28

Answer 1

To solve this system of equations, we can use substitution or elimination method. We will use the substitution method here.

From the first equation:
9x + y = 12
y = 12 - 9x

Now substitute this expression for y in the second equation:
2x + 4(12 - 9x) = -28
2x + 48 - 36x = -28
-34x + 48 = -28
-34x = -76
x = 2

Now substitute the value of x back into the expression we found for y:
y = 12 - 9(2)
y = 12 - 18
y = -6

Therefore, the solution to the system of equations is x = 2 and y = -6.