To solve this system of equations, we will use the method of substitution.
From the first equation, we can isolate y:
y = 9x + 12
Now we substitute this expression for y into the second equation:
2x + 4(9x + 12) = -28
2x + 36x + 48 = -28
38x + 48 = -28
38x = -76
x = -2
Now that we have found the value of x, we can substitute it back into the first equation to find the value of y:
-9(-2) + y = 12
18 + y = 12
y = -6
Therefore, the solution to the system of equations is x = -2 and y = -6.
Solve the system of equations.
-9x + y = 12
2x + 4y = -28 (1 point)
1 answer
2 answers