Solve using substitution.
y = 7
–4x − 3y = –1
First, let's solve for y in the first equation:
y = 7
Next, substitute this value of y into the second equation:
–4x - 3(7) = -1
Simplify the equation:
-4x - 21 = -1
Add 21 to both sides:
-4x = 20
Divide both sides by -4:
x = -5
So the solution is x = -5 and y = 7.