Solve using the substitution method.
-x = 4 + -4y
x + 4y = 7
A) Infinitely many solutions
B) No solution
C) (- 1, 8)
D) (- 1, - 8)
Correct Answer:
Verified
Q31: Solve the problem.
-Two angles have a sum
Q32: Solve by the substitution method.
-7x + 6y
Q33: Solve by the substitution method.
-x - 4y
Q34: Solve by the substitution method.
-7x - 5y
Q35: Solve by the substitution method.
-6x + 30
Q37: Solve the problem.
-Find two numbers whose sum
Q38: Solve the problem.
-The perimeter of a rectangle
Q39: Solve by the substitution method.
--7x + 8y
Q40: Solve using the elimination method.
-x + y
Q41: Solve the system of equations by the
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