Answer:
graphing : Find the intersection points
substitution method : If you have e.g. x+2y=9 and x=3+2y, we can substitute it, (3+2y)+2y=9
elimination method : Make two variables the same, minus them and solve the equation
Step-by-step explanation:
Answer:17.64
Step-by-step explanation:44762/54/47= 17.6367 or 17.64
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Answer:
$12.55
Step-by-step explanation:
20-7.45=12.55
