X=5. this is true because if y=0 and y=15-3x, then 15-3x=0. if x is 5, it would be 15-3(5)=0.
Answer:
closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions. A rational expression is any polynomial divided by any polynomial except for zero.
Step-by-step explanation:
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Answer:
B
Step-by-step explanation:
You just subtract it by 4. 12-4=8 etc.
Answer:
C
Step-by-step explanation:
Answer:
9 yrs.
Step-by-step explanation:
39+9=48
3+9=12
48/12=4
