Answer:
b.
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Answer: x = 0 , y = -4
Step-by-step explanation:
4x - 3y = 12 } Equation 1
y = 7x - 4 } Equation 2
<em>We can substitute the value of y from equation 2 in equation 1: </em>
4x - 3(7x - 4) = 12
4x - 21x + 12 = 12
-17x = 12-12
-17x = 0
x = 0
<em>Now we can substitute this value of x in equation 2 :</em>
y = 7x - 4 } Equation 2
y = 7·0 - 4 = -4
Answer: x = 0 , y = -4
<h2><em>Spymore</em></h2>