7x+4y= -4
Is (3, -8) the solution to the equation?
Does 21 - 32 = -4?
To determine if (3, -8) is a solution to the equation 7x + 4y = -4, we need to substitute the values of x and y into the equation and check if the equation is satisfied.
Let's substitute x = 3 and y = -8 into the equation:
7(3) + 4(-8) = -4
Now we simplify the equation:
21 - 32 = -4
-11 = -4
Since -11 is not equal to -4, the equation is not satisfied. Therefore, (3, -8) is not a solution to the equation 7x + 4y = -4.