Which of the following illustrates a system of linear equations in two variables?
a. x - 2x + 2 = 0
b. x + 2y - 3 = 0
c. x + y = 1 and x = -y
d. x + 4 = 0 and 2x + 2y = 0
a. x - 2x + 2 = 0
b. x + 2y - 3 = 0
c. x + y = 1 and x = -y
d. x + 4 = 0 and 2x + 2y = 0
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Answer:
b x+2y-3=0
Step-by-step explanation:
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