Solve by the substitution method.
-x - 4y = -4 7x - 3y = -28
A)(-4, 0)
B)(-3, -4)
C)(4, -1)
D)No solution

Name: Solve by the substitution method. -x - 4y = -4 7x - 3y = -28 A)(-4, 0) B)(-3, -4) C)(4, -1) D)No solution
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Question

Quizplus · Accepted Answer

Solving the first equation for x gives x = 4y - 4. Substituting this into the second equation gives 7(4y - 4) - 3y = -28, which simplifies to 28y - 28 - 3y = -28, or 25y = 0, so y = 0. Substituting y = 0 into x = 4y - 4 gives x = -4. Therefore, the solution is (-4, 0).

Solve by the Substitution Method