Question

Olve the system of equations.

{y=3x−7
{15x−5y=14

A. Use the substitution method.

B. The solution is (15, 5)

C. The solution is (0, 7)

D. There is no solution.

E. There are an infinite number of solutions.

Answer 1

The system:
y = 3 x - 7
15 x - 5 y = 14
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Using the substitution method:
15 x - 5 · ( 3 x - 7 ) = 14
15 x - 15 x + 35 = 14
0 · x = 14 - 35
0 · x = - 21
x , y ∈ ∅
Answer:
D ) There is no solution.